880410 Commits

Author SHA1 Message Date
Dafna Hirschfeld
d40e6a98aa pinctrl: rockchip: fix memleak in rockchip_dt_node_to_map
[ Upstream commit d7faa8ffb6be57bf8233a4b5a636d76b83c51ce7 ]

In function rockchip_dt_node_to_map, a new_map variable is
allocated by:

new_map = devm_kcalloc(pctldev->dev, map_num, sizeof(*new_map),
		       GFP_KERNEL);

This uses devres and attaches new_map to the pinctrl driver.
This cause a leak since new_map is not released when the probed
driver is removed. Fix it by using kcalloc to allocate new_map
and free it in `rockchip_dt_free_map`

Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20200506100903.15420-1-dafna.hirschfeld@collabora.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:26 +02:00
Christophe JAILLET
5248114b9b ASoC: ti: omap-mcbsp: Fix an error handling path in 'asoc_mcbsp_probe()'
[ Upstream commit 03990fd58d2b7c8f7d53e514ba9b8749fac260f9 ]

If an error occurs after the call to 'omap_mcbsp_init()', the reference to
'mcbsp->fclk' must be decremented, as already done in the remove function.

This can be achieved easily by using the devm_ variant of 'clk_get()'
when the reference is taken in 'omap_mcbsp_init()'

This fixes the leak in the probe and has the side effect to simplify both
the error handling path of 'omap_mcbsp_init()' and the remove function.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Peter Ujfalusi <peter.ujflausi@ti.com>
Link: https://lore.kernel.org/r/20200512134325.252073-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:26 +02:00
Christophe JAILLET
5acfef9964 ASoC: ux500: mop500: Fix some refcounted resources issues
[ Upstream commit 4e8748fcaeec073e3ba794871ce86c545e4f961f ]

There are 2 issues here:
   - if one of the 'of_parse_phandle' fails, calling 'mop500_of_node_put()'
     is a no-op because the 'mop500_dai_links' structure has not been
     initialized yet, so the referenced are not decremented
   - The reference stored in 'mop500_dai_links[i].codecs' is refcounted
     only once in the probe and must be decremented only once.

Fixes: 39013bd60e79 ("ASoC: Ux500: Dispose of device nodes correctly")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/20200512100705.246349-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:26 +02:00
Yongbo Zhang
b0ccdd2fdd SoC: rsnd: add interrupt support for SSI BUSIF buffer
[ Upstream commit 66c705d07d784fb6b4622c6e47b6acae357472db ]

SSI BUSIF buffer is possible to overflow or underflow, especially in a
hypervisor environment. If there is no interrupt support, it will eventually
lead to errors in pcm data.
This patch adds overflow and underflow interrupt support for SSI BUSIF buffer.

Reported-by: Chen Li <licheng0822@thundersoft.com>
Signed-off-by: Yongbo Zhang <giraffesnn123@gmail.com>
Tested-by: Chen Li <licheng0822@thundersoft.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/20200512093003.28332-1-giraffesnn123@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:26 +02:00
Suganath Prabu S
f34a3697a8 scsi: mpt3sas: Fix double free warnings
[ Upstream commit cbbfdb2a2416c9f0cde913cf09670097ac281282 ]

Fix following warning from Smatch static analyser:

drivers/scsi/mpt3sas/mpt3sas_base.c:5256 _base_allocate_memory_pools()
warn: 'ioc->hpr_lookup' double freed

drivers/scsi/mpt3sas/mpt3sas_base.c:5256 _base_allocate_memory_pools()
warn: 'ioc->internal_lookup' double freed

Link: https://lore.kernel.org/r/20200508110738.30732-1-suganath-prabu.subramani@broadcom.com
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:26 +02:00
Bodo Stroesser
f20dfec03b scsi: target: loopback: Fix READ with data and sensebytes
[ Upstream commit c68a56736c129f5dd1632856956f9c3e04bae200 ]

We use tcm_loop with tape emulations running on tcmu.

In case application reads a short tape block with a longer READ, or a long
tape block with a short READ, according to SCC spec data has to be
tranferred _and_ sensebytes with ILI set and information field containing
the residual count. Similar problem also exists when using fixed block
size in READ.

Up to now tcm_loop is not prepared to handle sensebytes if input data is
provided, as in tcm_loop_queue_data_in() it only sets SAM_STAT_GOOD and, if
necessary, the residual count.

To fix the bug, the same handling for sensebytes as present in
tcm_loop_queue_status() must be done in tcm_loop_queue_data_in() also.

After adding this handling, the two function now are nearly identical, so I
created a single function with two wrappers.

Link: https://lore.kernel.org/r/20200428182617.32726-1-bstroesser@ts.fujitsu.com
Signed-off-by: Bodo Stroesser <bstroesser@ts.fujitsu.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:25 +02:00
Loic Poulain
a798daf42a arm64: dts: msm8996: Fix CSI IRQ types
[ Upstream commit 4a4a26317ec8aba575f6b85789a42639937bc1a4 ]

Each IRQ_TYPE_NONE interrupt causes a warning at boot.
Fix that by defining an appropriate type.

Fixes: e0531312e78f ("arm64: dts: qcom: msm8996: Add CAMSS support")
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Link: https://lore.kernel.org/r/1587470425-13726-1-git-send-email-loic.poulain@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:25 +02:00
Wei Yongjun
6544b95bd7 ASoC: SOF: core: fix error return code in sof_probe_continue()
[ Upstream commit 7d8785bc7adbb4dc5ba8ee06994107637848ded8 ]

Fix to return negative error code -ENOMEM from the IPC init error
handling case instead of 0, as done elsewhere in this function.

Fixes: c16211d6226d ("ASoC: SOF: Add Sound Open Firmware driver core")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20200509093337.78897-1-weiyongjun1@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:25 +02:00
Dmitry Osipenko
79790202d4 power: supply: smb347-charger: IRQSTAT_D is volatile
[ Upstream commit c32ea07a30630ace950e07ffe7a18bdcc25898e1 ]

Fix failure when USB cable is connected:
smb347 2-006a: reading IRQSTAT_D failed

Fixes: 1502cfe19bac ("smb347-charger: Fix battery status reporting logic for charger faults")

Tested-by: David Heidelberg <david@ixit.cz>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: David Heidelberg <david@ixit.cz>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:25 +02:00
Christophe JAILLET
ad8b5b5faf power: supply: lp8788: Fix an error handling path in 'lp8788_charger_probe()'
[ Upstream commit 934ed3847a4ebc75b655659c4d2349ba4337941c ]

In the probe function, in case of error, resources allocated in
'lp8788_setup_adc_channel()' must be released.

This can be achieved easily by using the devm_ variant of
'iio_channel_get()'.
This has the extra benefit to simplify the remove function and to axe the
'lp8788_release_adc_channel()' function which is now useless.

Fixes: 98a276649358 ("power_supply: Add new lp8788 charger driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:25 +02:00
Takashi Sakamoto
c1bcf01aea ALSA: firewire-lib: fix invalid assignment to union data for directional parameter
[ Upstream commit 8304cf77c92038cd1c50c27b69d30be695cc8003 ]

Although the value of FDF is used just for outgoing stream, the assignment
to union member is done for both directions of stream. At present this
causes no issue because the value of same position is reassigned later for
opposite stream. However, it's better to add if statement.

Fixes: d3d10a4a1b19 ("ALSA: firewire-lib: use union for directional parameters")
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200508043635.349339-2-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:25 +02:00
Viacheslav Dubeyko
3201bb03c8 scsi: qla2xxx: Fix warning after FC target reset
[ Upstream commit f839544ccff60cbe534282aac68858fc3fb278ca ]

Currently, FC target reset finishes with the warning message:

[84010.596893] ------------[ cut here ]------------
[84010.596917] WARNING: CPU: 238 PID: 279973 at ../drivers/scsi/qla2xxx/qla_target.c:6644 qlt_enable_vha+0x1d0/0x260 [qla2xxx]
[84010.596918] Modules linked in: vrf af_packet 8021q garp mrp stp llc netlink_diag target_tatlin_tblock(OEX) dm_ec(OEX) ttln_rdma(OEX) dm_frontend(OEX) nvme_rdma nvmet tcm_qla2xxx iscsi_target_mod target_core_mod at24 nvmem_core pnv_php ipmi_watchdog ipmi_ssif vmx_crypto gf128mul crct10dif_vpmsum qla2xxx rpcrdma nvme_fc powernv_flash(X) nvme_fabrics uio_pdrv_genirq mtd rtc_opal(X) ibmpowernv(X) opal_prd(X) uio scsi_transport_fc i2c_opal(X) ses enclosure ipmi_poweroff ast i2c_algo_bit ttm bmc_mcu(OEX) drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops drm drm_panel_orientation_quirks agpgart nfsd auth_rpcgss nfs_acl ipmi_powernv(X) lockd ipmi_devintf ipmi_msghandler grace dummy ext4 crc16 jbd2 mbcache sd_mod rdma_ucm ib_iser rdma_cm ib_umad iw_cm ib_ipoib libiscsi scsi_transport_iscsi ib_cm
[84010.596975]  configfs mlx5_ib ib_uverbs ib_core mlx5_core crc32c_vpmsum xhci_pci xhci_hcd mpt3sas(OEX) tg3 usbcore mlxfw tls raid_class libphy scsi_transport_sas devlink ptp pps_core nvme nvme_core sunrpc dm_mirror dm_region_hash dm_log sg dm_multipath dm_mod scsi_dh_rdac scsi_dh_emc scsi_dh_alua scsi_mod autofs4
[84010.597001] Supported: Yes, External
[84010.597004] CPU: 238 PID: 279973 Comm: bash Tainted: G           OE      4.12.14-197.29-default #1 SLE15-SP1
[84010.597006] task: c000000a104c0000 task.stack: c000000b52188000
[84010.597007] NIP: d00000001ffd7f78 LR: d00000001ffd7f6c CTR: c0000000001676c0
[84010.597008] REGS: c000000b5218b910 TRAP: 0700   Tainted: G           OE       (4.12.14-197.29-default)
[84010.597008] MSR: 900000010282b033 <SF,HV,VEC,VSX,EE,FP,ME,IR,DR,RI,LE,TM[E]>
[84010.597015]   CR: 48242424  XER: 00000000
[84010.597016] CFAR: d00000001ff45d08 SOFTE: 1
               GPR00: d00000001ffd7f6c c000000b5218bb90 d00000002001b228 0000000000000102
               GPR04: 0000000000000001 0000000000000001 00013d91ed0a5e2d 0000000000000000
               GPR08: c000000007793300 0000000000000000 0000000000000000 c000000a086e7818
               GPR12: 0000000000002200 c000000007793300 0000000000000000 000000012bc937c0
               GPR16: 000000012bbf7ed0 0000000000000000 000000012bc3dd10 0000000000000000
               GPR20: 000000012bc4db28 0000010036442810 000000012bc97828 000000012bc96c70
               GPR24: 00000100365b1550 0000000000000000 00000100363f3d80 c000000be20d3080
               GPR28: c000000bda7eae00 c000000be20db7e8 c000000be20d3778 c000000be20db7e8
[84010.597042] NIP [d00000001ffd7f78] qlt_enable_vha+0x1d0/0x260 [qla2xxx]
[84010.597051] LR [d00000001ffd7f6c] qlt_enable_vha+0x1c4/0x260 [qla2xxx]
[84010.597051] Call Trace:
[84010.597061] [c000000b5218bb90] [d00000001ffd7f6c] qlt_enable_vha+0x1c4/0x260 [qla2xxx] (unreliable)
[84010.597064] [c000000b5218bc20] [d000000009820b6c] tcm_qla2xxx_tpg_enable_store+0xc4/0x130 [tcm_qla2xxx]
[84010.597067] [c000000b5218bcb0] [d0000000185d0e68] configfs_write_file+0xd0/0x190 [configfs]
[84010.597072] [c000000b5218bd00] [c0000000003d0edc] __vfs_write+0x3c/0x1e0
[84010.597074] [c000000b5218bd90] [c0000000003d2ea8] vfs_write+0xd8/0x220
[84010.597076] [c000000b5218bde0] [c0000000003d4ddc] SyS_write+0x6c/0x110
[84010.597079] [c000000b5218be30] [c00000000000b188] system_call+0x3c/0x130
[84010.597080] Instruction dump:
[84010.597082] 7d0050a8 7d084b78 7d0051ad 40c2fff4 7fa3eb78 4bf73965 60000000 7fa3eb78
[84010.597086] 4bf6dcd9 60000000 2fa30000 419eff40 <0fe00000> 4bffff38 e95f0058 a12a0180
[84010.597090] ---[ end trace e32abaf6e6fee826 ]---

To reproduce:

echo 0x7fffffff > /sys/module/qla2xxx/parameters/logging
modprobe target_core_mod
modprobe tcm_qla2xxx
mkdir /sys/kernel/config/target/qla2xxx
mkdir /sys/kernel/config/target/qla2xxx/<port-name>
mkdir /sys/kernel/config/target/qla2xxx/<port-name>/tpgt_1
echo 1 > /sys/kernel/config/target/qla2xxx/<port-name>/tpgt_1/enable
echo 0 > /sys/kernel/config/target/qla2xxx/<port-name>/tpgt_1/enable
echo 1 > /sys/kernel/config/target/qla2xxx/<port-name>/tpgt_1/enable

SYSTEM START
kernel: pid 327:drivers/scsi/qla2xxx/qla_init.c:2174 qla2x00_initialize_adapter(): vha->flags.online 0x0
<...>
kernel: pid 327:drivers/scsi/qla2xxx/qla_os.c:3444 qla2x00_probe_one(): vha->flags.online 0x1

echo 1 > /sys/kernel/config/target/qla2xxx/21:00:00:24:ff:86:a6:2a/tpgt_1/enable
kernel: pid 348:drivers/scsi/qla2xxx/qla_init.c:6641 qla2x00_abort_isp_cleanup(): vha->flags.online 0x0, ISP_ABORT_NEEDED 0x0
<...>
kernel: pid 348:drivers/scsi/qla2xxx/qla_init.c:6998 qla2x00_restart_isp(): vha->flags.online 0x0

echo 0 > /sys/kernel/config/target/qla2xxx/21:00:00:24:ff:86:a6:2a/tpgt_1/enable
kernel: pid 348:drivers/scsi/qla2xxx/qla_init.c:6641 qla2x00_abort_isp_cleanup(): vha->flags.online 0x0, ISP_ABORT_NEEDED 0x0
<...>
kernel: pid 1404:drivers/scsi/qla2xxx/qla_os.c:1107 qla2x00_wait_for_hba_online(): base_vha->flags.online 0x0

echo 1 > /sys/kernel/config/target/qla2xxx/21:00:00:24:ff:86:a6:2a/tpgt_1/enable
kernel: pid 1404:drivers/scsi/qla2xxx/qla_os.c:1107 qla2x00_wait_for_hba_online(): base_vha->flags.online 0x0
kernel: -----------[ cut here ]-----------
kernel: WARNING: CPU: 1 PID: 1404 at drivers/scsi/qla2xxx/qla_target.c:6654 qlt_enable_vha+0x1e0/0x280 [qla2xxx]

The issue happens because no real ISP reset is executed.  The
qla2x00_abort_isp(scsi_qla_host_t *vha) function expects that
vha->flags.online will be not zero for ISP reset procedure.  This patch
sets vha->flags.online to 1 before calling ->abort_isp() for starting the
ISP reset.

Link: https://lore.kernel.org/r/1d7b21bf9f7676643239eb3d60eaca7cfa505cf0.camel@yadro.com
Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Viacheslav Dubeyko <v.dubeiko@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:24 +02:00
Kai-Heng Feng
766c787e55 PCI/ASPM: Allow ASPM on links to PCIe-to-PCI/PCI-X Bridges
[ Upstream commit 66ff14e59e8a30690755b08bc3042359703fb07a ]

7d715a6c1ae5 ("PCI: add PCI Express ASPM support") added the ability for
Linux to enable ASPM, but for some undocumented reason, it didn't enable
ASPM on links where the downstream component is a PCIe-to-PCI/PCI-X Bridge.

Remove this exclusion so we can enable ASPM on these links.

The Dell OptiPlex 7080 mentioned in the bugzilla has a TI XIO2001
PCIe-to-PCI Bridge.  Enabling ASPM on the link leading to it allows the
Intel SoC to enter deeper Package C-states, which is a significant power
savings.

[bhelgaas: commit log]
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=207571
Link: https://lore.kernel.org/r/20200505173423.26968-1-kai.heng.feng@canonical.com
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:24 +02:00
Andrew Murray
742f8ac8ed PCI: rcar: Fix incorrect programming of OB windows
[ Upstream commit 2b9f217433e31d125fb697ca7974d3de3ecc3e92 ]

The outbound windows (PCIEPAUR(x), PCIEPALR(x)) describe a mapping between
a CPU address (which is determined by the window number 'x') and a
programmed PCI address - Thus allowing the controller to translate CPU
accesses into PCI accesses.

However the existing code incorrectly writes the CPU address - lets fix
this by writing the PCI address instead.

For memory transactions, existing DT users describe a 1:1 identity mapping
and thus this change should have no effect. However the same isn't true for
I/O.

Link: https://lore.kernel.org/r/20191004132941.6660-1-andrew.murray@arm.com
Fixes: c25da4778803 ("PCI: rcar: Add Renesas R-Car PCIe driver")
Tested-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Signed-off-by: Andrew Murray <andrew.murray@arm.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:24 +02:00
Kuppuswamy Sathyanarayanan
efb5f7b106 drivers: base: Fix NULL pointer exception in __platform_driver_probe() if a driver developer is foolish
[ Upstream commit 388bcc6ecc609fca1b4920de7dc3806c98ec535e ]

If platform bus driver registration is failed then, accessing
platform bus spin lock (&drv->driver.bus->p->klist_drivers.k_lock)
in __platform_driver_probe() without verifying the return value
__platform_driver_register() can lead to NULL pointer exception.

So check the return value before attempting the spin lock.

One such example is below:

For a custom usecase, I have intentionally failed the platform bus
registration and I expected all the platform device/driver
registrations to fail gracefully. But I came across this panic
issue.

[    1.331067] BUG: kernel NULL pointer dereference, address: 00000000000000c8
[    1.331118] #PF: supervisor write access in kernel mode
[    1.331163] #PF: error_code(0x0002) - not-present page
[    1.331208] PGD 0 P4D 0
[    1.331233] Oops: 0002 [#1] PREEMPT SMP
[    1.331268] CPU: 3 PID: 1 Comm: swapper/0 Tainted: G        W         5.6.0-00049-g670d35fb0144 #165
[    1.331341] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015
[    1.331406] RIP: 0010:_raw_spin_lock+0x15/0x30
[    1.331588] RSP: 0000:ffffc9000001be70 EFLAGS: 00010246
[    1.331632] RAX: 0000000000000000 RBX: 00000000000000c8 RCX: 0000000000000001
[    1.331696] RDX: 0000000000000001 RSI: 0000000000000092 RDI: 0000000000000000
[    1.331754] RBP: 00000000ffffffed R08: 0000000000000501 R09: 0000000000000001
[    1.331817] R10: ffff88817abcc520 R11: 0000000000000670 R12: 00000000ffffffed
[    1.331881] R13: ffffffff82dbc268 R14: ffffffff832f070a R15: 0000000000000000
[    1.331945] FS:  0000000000000000(0000) GS:ffff88817bd80000(0000) knlGS:0000000000000000
[    1.332008] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    1.332062] CR2: 00000000000000c8 CR3: 000000000681e001 CR4: 00000000003606e0
[    1.332126] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    1.332189] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    1.332252] Call Trace:
[    1.332281]  __platform_driver_probe+0x92/0xee
[    1.332323]  ? rtc_dev_init+0x2b/0x2b
[    1.332358]  cmos_init+0x37/0x67
[    1.332396]  do_one_initcall+0x7d/0x168
[    1.332428]  kernel_init_freeable+0x16c/0x1c9
[    1.332473]  ? rest_init+0xc0/0xc0
[    1.332508]  kernel_init+0x5/0x100
[    1.332543]  ret_from_fork+0x1f/0x30
[    1.332579] CR2: 00000000000000c8
[    1.332616] ---[ end trace 3bd87f12e9010b87 ]---
[    1.333549] note: swapper/0[1] exited with preempt_count 1
[    1.333592] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000009
[    1.333736] Kernel Offset: disabled

Note, this can only be triggered if a driver errors out from this call,
which should never happen.  If it does, the driver needs to be fixed.

Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Link: https://lore.kernel.org/r/20200408214003.3356-1-sathyanarayanan.kuppuswamy@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:24 +02:00
John Stultz
33cf7944af serial: amba-pl011: Make sure we initialize the port.lock spinlock
[ Upstream commit 8508f4cba308f785b2fd4b8c38849c117b407297 ]

Valentine reported seeing:

[    3.626638] INFO: trying to register non-static key.
[    3.626639] the code is fine but needs lockdep annotation.
[    3.626640] turning off the locking correctness validator.
[    3.626644] CPU: 7 PID: 51 Comm: kworker/7:1 Not tainted 5.7.0-rc2-00115-g8c2e9790f196 #116
[    3.626646] Hardware name: HiKey960 (DT)
[    3.626656] Workqueue: events deferred_probe_work_func
[    3.632476] sd 0:0:0:0: [sda] Optimal transfer size 8192 bytes not a multiple of physical block size (16384 bytes)
[    3.640220] Call trace:
[    3.640225]  dump_backtrace+0x0/0x1b8
[    3.640227]  show_stack+0x20/0x30
[    3.640230]  dump_stack+0xec/0x158
[    3.640234]  register_lock_class+0x598/0x5c0
[    3.640235]  __lock_acquire+0x80/0x16c0
[    3.640236]  lock_acquire+0xf4/0x4a0
[    3.640241]  _raw_spin_lock_irqsave+0x70/0xa8
[    3.640245]  uart_add_one_port+0x388/0x4b8
[    3.640248]  pl011_register_port+0x70/0xf0
[    3.640250]  pl011_probe+0x184/0x1b8
[    3.640254]  amba_probe+0xdc/0x180
[    3.640256]  really_probe+0xe0/0x338
[    3.640257]  driver_probe_device+0x60/0xf8
[    3.640259]  __device_attach_driver+0x8c/0xd0
[    3.640260]  bus_for_each_drv+0x84/0xd8
[    3.640261]  __device_attach+0xe4/0x140
[    3.640263]  device_initial_probe+0x1c/0x28
[    3.640265]  bus_probe_device+0xa4/0xb0
[    3.640266]  deferred_probe_work_func+0x7c/0xb8
[    3.640269]  process_one_work+0x2c0/0x768
[    3.640271]  worker_thread+0x4c/0x498
[    3.640272]  kthread+0x14c/0x158
[    3.640275]  ret_from_fork+0x10/0x1c

Which seems to be due to the fact that after allocating the uap
structure, nothing initializes the spinlock.

Its a little confusing, as uart_port_spin_lock_init() is one
place where the lock is supposed to be initialized, but it has
an exception for the case where the port is a console.

This makes it seem like a deeper fix is needed to properly
register the console, but I'm not sure what that entails, and
Andy suggested that this approach is less invasive.

Thus, this patch resolves the issue by initializing the spinlock
in the driver, and resolves the resulting warning.

Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: linux-serial@vger.kernel.org
Reported-by: Valentin Schneider <valentin.schneider@arm.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Reviewed-and-tested-by: Valentin Schneider <valentin.schneider@arm.com>
Link: https://lore.kernel.org/r/20200428184050.6501-1-john.stultz@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:24 +02:00
Russell King
32a5bc992b i2c: pxa: fix i2c_pxa_scream_blue_murder() debug output
[ Upstream commit 88b73ee7ca4c90baf136ed5a8377fc5a9b73ac08 ]

The IRQ log output is supposed to appear on a single line.  However,
commit 3a2dc1677b60 ("i2c: pxa: Update debug function to dump more info
on error") resulted in it being printed one-entry-per-line, which is
excessively long.

Fixing this is not a trivial matter; using pr_cont() doesn't work as
the previous dev_dbg() may not have been compiled in, or may be
dynamic.

Since the rest of this function output is at error level, and is also
debug output, promote this to error level as well to avoid this
problem.

Reduce the number of always zero prefix digits to save screen real-
estate.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:24 +02:00
Christophe JAILLET
9eb54d0e89 PCI: v3-semi: Fix a memory leak in v3_pci_probe() error handling paths
[ Upstream commit bca718988b9008d0d5f504e2d318178fc84958c1 ]

If we fails somewhere in 'v3_pci_probe()', we need to free 'host'.

Use the managed version of 'pci_alloc_host_bridge()' to do that easily.
The use of managed resources is already widely used in this driver.

Link: https://lore.kernel.org/r/20200418081637.1585-1-christophe.jaillet@wanadoo.fr
Fixes: 68a15eb7bd0c ("PCI: v3-semi: Add V3 Semiconductor PCI host driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
[lorenzo.pieralisi@arm.com: commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:24 +02:00
Matej Dujava
4d30daf901 staging: sm750fb: add missing case while setting FB_VISUAL
[ Upstream commit fa90133377f4a7f15a937df6ad55133bb57c5665 ]

Switch statement does not contain all cases: 8, 16, 24, 32.
This patch will add missing one (24)

Fixes: 81dee67e215b ("staging: sm750fb: add sm750 to staging")
Signed-off-by: Matej Dujava <mdujava@kocurkovo.cz>
Link: https://lore.kernel.org/r/1588277366-19354-2-git-send-email-mdujava@kocurkovo.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:24 +02:00
Oscar Carter
2428682e3f staging: wilc1000: Increase the size of wid_list array
[ Upstream commit a4338ed2e1cf724563956ec5f91deeaabfedbe23 ]

Increase by one the size of wid_list array as index variable can reach a
value of 5. If this happens, an out-of-bounds access is performed.

Also, use a #define instead of a hard-coded literal for the new array
size.

Addresses-Coverity-ID: 1451981 ("Out-of-bounds access")
Fixes: f5a3cb90b802d ("staging: wilc1000: add passive scan support")
Acked-by: Ajay Singh <ajay.kathat@microchip.com>
Signed-off-by: Oscar Carter <oscar.carter@gmx.com>
Link: https://lore.kernel.org/r/20200504150911.4470-1-oscar.carter@gmx.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:23 +02:00
Thinh Nguyen
b14b735953 usb: dwc3: gadget: Properly handle failed kick_transfer
[ Upstream commit 8d99087c2db863c5fa3a4a1f3cb82b3a493705ca ]

If dwc3 fails to issue START_TRANSFER/UPDATE_TRANSFER command, then we
should properly end an active transfer and give back all the started
requests. However if it's for an isoc endpoint, the failure maybe due to
bus-expiry status. In this case, don't give back the requests and wait
for the next retry.

Fixes: 72246da40f37 ("usb: Introduce DesignWare USB3 DRD Driver")
Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:23 +02:00
Thinh Nguyen
1bfa091472 usb: dwc3: gadget: Properly handle ClearFeature(halt)
[ Upstream commit cb11ea56f37a36288cdd0a4799a983ee3aa437dd ]

DWC3 must not issue CLEAR_STALL command to control endpoints. The
controller automatically clears the STALL when it receives the SETUP
token. Also, when the driver receives ClearFeature(halt_ep), DWC3 must
stop any active transfer from the endpoint and give back all the
requests to the function drivers.

Fixes: 72246da40f37 ("usb: Introduce DesignWare USB3 DRD Driver")
Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:23 +02:00
Arnd Bergmann
e320bb0e01 HID: intel-ish-hid: avoid bogus uninitialized-variable warning
[ Upstream commit 0b66fb3e6b7a53688f8e20945ac78cd3d832c65f ]

Older compilers like gcc-4.8 don't see that the variable is
initialized when it is used:

In file included from include/linux/compiler_types.h:68:0,
                 from <command-line>:0:
drivers/hid/intel-ish-hid/ishtp-fw-loader.c: In function 'load_fw_from_host':
include/linux/compiler-gcc.h:75:45: warning: 'fw_info.ldr_capability.max_dma_buf_size' may be used uninitialized in this function [-Wmaybe-uninitialized]
 #define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__)
                                             ^
drivers/hid/intel-ish-hid/ishtp-fw-loader.c:770:22: note: 'fw_info.ldr_capability.max_dma_buf_size' was declared here
  struct shim_fw_info fw_info;
                      ^

Make sure to initialize it before returning an error from ish_query_loader_prop().

Fixes: 91b228107da3 ("HID: intel-ish-hid: ISH firmware loader client driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:23 +02:00
Pierre-Louis Bossart
cbec16266a soundwire: slave: don't init debugfs on device registration error
[ Upstream commit 8893ab5e8ee5d7c12e0fc1dca4a309475064473d ]

The error handling flow seems incorrect, there is no reason to try and
add debugfs support if the device registration did not
succeed. Return on error.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Link: https://lore.kernel.org/r/20200419185117.4233-2-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:23 +02:00
Yong Zhi
a45fc52449 ASoC: max98373: reorder max98373_reset() in resume
[ Upstream commit 1a446873d7dd3a450f685928ce7f1907bde4583d ]

During S3 test, the following error was observed:

[ 726.174237] i2c_designware i2c_designware.0: platform_pm_resume+0x0/0x3d returned 0 after 0 usecs
[ 726.184187] max98373 i2c-MX98373:00: calling max98373_resume+0x0/0x30 [snd_soc_max98373] @ 12698, parent: i2c-11
[ 726.195589] max98373 i2c-MX98373:00: Reset command failed. (ret:-16)

When calling regmap_update_bits(), since map->reg_update_bits is NULL,
_regmap_read() is entered with the following logic:

	if (!map->cache_bypass) {
		ret = regcache_read(map, reg, val);
		if (ret == 0)
			return 0;
	}

	if (map->cache_only)
		return -EBUSY;

regcache_read() hits -EINVAL because MAX98373_R2000_SW_RESET is volatile,
as map->cache_only is set by codec suspend, thus -EBUSY is returned.
Fix by moving max98373_reset() after cache_only set to false in max98373_resume().

Signed-off-by: Yong Zhi <yong.zhi@intel.com>
Link: https://lore.kernel.org/r/1588376661-29799-1-git-send-email-yong.zhi@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:23 +02:00
Martin Blumenstingl
7377ba16b5 clk: meson: meson8b: Don't rely on u-boot to init all GP_PLL registers
[ Upstream commit a29ae8600d50ece1856b062a39ed296b8b952259 ]

Not all u-boot versions initialize the HHI_GP_PLL_CNTL[2-5] registers.
In that case all HHI_GPLL_PLL_CNTL[1-5] registers are 0x0 and when
booting Linux the PLL fails to lock.
The initialization sequence from u-boot is:
- put the PLL into reset
- write 0x59C88000 to HHI_GP_PLL_CNTL2
- write 0xCA463823 to HHI_GP_PLL_CNTL3
- write 0x0286A027 to HHI_GP_PLL_CNTL4
- write 0x00003000 to HHI_GP_PLL_CNTL5
- set M, N, OD and the enable bit
- take the PLL out of reset
- check if it has locked
- disable the PLL

In Linux we already initialize M, N, OD, the enable and the reset bits.
Also the HHI_GP_PLL_CNTL[2-5] registers with these magic values (the
exact meaning is unknown) so the PLL can lock when the vendor u-boot did
not initialize these registers yet.

Fixes: b882964b376f21 ("clk: meson: meson8b: add support for the GP_PLL clock on Meson8m2")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20200501215717.735393-1-martin.blumenstingl@googlemail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:23 +02:00
Sudip Mukherjee
ea78361174 thermal/drivers/ti-soc-thermal: Avoid dereferencing ERR_PTR
[ Upstream commit 7440f518dad9d861d76c64956641eeddd3586f75 ]

On error the function ti_bandgap_get_sensor_data() returns the error
code in ERR_PTR() but we only checked if the return value is NULL or
not. And, so we can dereference an error code inside ERR_PTR.
While at it, convert a check to IS_ERR_OR_NULL.

Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200424161944.6044-1-sudipm.mukherjee@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:23 +02:00
Uwe Kleine-König
3296e566b0 gpio: pca953x: fix handling of automatic address incrementing
[ Upstream commit bcf41dc480b179bfb669a232080a2e26dc7294b4 ]

Some of the chips supported by the pca953x driver need the most
significant bit in the address word set to automatically increment the
address pointer on subsequent reads and writes (example: PCA9505). With
this bit unset the same register is read multiple times on a multi-byte
read sequence. Other chips must not have this bit set and autoincrement
always (example: PCA9555).

Up to now this AI bit was interpreted to be part of the address, which
resulted in inconsistent regmap caching when a register was written with
AI set and then read without it. This happened for the PCA9505 in
pca953x_gpio_set_multiple() where pca953x_read_regs() bulk read from the
cache for registers 0x8-0xc and then wrote to registers 0x88-0x8c. (Side
note: reading 5 values from offset 0x8 yiels OP0 5 times because AI must
be set to get OP0-OP4, which is another bug that is resolved here as a
by-product.) The same problem happens when calls to gpio_set_value() and
gpio_set_array_value() were mixed.

With this patch the AI bit is always set for chips that support it. This
works as there are no code locations that make use of the behaviour with
AI unset (for the chips that support it).

Note that the call to pca953x_setup_gpio() had to be done a bit earlier
to make the NBANK macro work.

The history of this bug is a bit complicated. Commit b32cecb46bdc
("gpio: pca953x: Extract the register address mangling to single
function") changed which chips and functions are affected. Commit
3b00691cc46a ("gpio: pca953x: hack to fix 24 bit gpio expanders") used
some duct tape to make the driver at least appear to work. Commit
49427232764d ("gpio: pca953x: Perform basic regmap conversion")
introduced the caching. Commit b4818afeacbd ("gpio: pca953x: Add
set_multiple to allow multiple bits to be set in one write.") introduced
the .set_multiple() callback which didn't work for chips that need the
AI bit which was fixed later for some chips in 8958262af3fb ("gpio:
pca953x: Repair multi-byte IO address increment on PCA9575"). So I'm
sorry, I don't know which commit I should pick for a Fixes: line.

Tested-by: Marcel Gudert <m.gudert@eckelmann.de>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:22 +02:00
Martin Blumenstingl
dd47c98992 clk: meson: meson8b: Fix the vclk_div{1, 2, 4, 6, 12}_en gate bits
[ Upstream commit 8bb629cfb28f4dad9d47f69249366e50ae5edc25 ]

The DIV{1,2,4,6,12}_EN bits are actually located in HHI_VID_CLK_CNTL
register:
- HHI_VID_CLK_CNTL[0] = DIV1_EN
- HHI_VID_CLK_CNTL[1] = DIV2_EN
- HHI_VID_CLK_CNTL[2] = DIV4_EN
- HHI_VID_CLK_CNTL[3] = DIV6_EN
- HHI_VID_CLK_CNTL[4] = DIV12_EN

Update the bits accordingly so we will enable the bits in the correct
register once we switch these clocks to be mutable.

Fixes: 6cb57c678bb70e ("clk: meson: meson8b: add the read-only video clock trees")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20200417184127.1319871-4-martin.blumenstingl@googlemail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:22 +02:00
Martin Blumenstingl
ecb9a8068b clk: meson: meson8b: Fix the polarity of the RESET_N lines
[ Upstream commit 0d3051c790ed2ef6bd91b92b07220313f06b95b3 ]

CLKC_RESET_VID_DIVIDER_CNTL_RESET_N_POST and
CLKC_RESET_VID_DIVIDER_CNTL_RESET_N_PRE are active low. This means:
- asserting them requires setting the register value to 0
- de-asserting them requires setting the register value to 1

Set the register value accordingly for these two reset lines by setting
the inverted the register value compared to all other reset lines.

Fixes: 189621726bc2f6 ("clk: meson: meson8b: register the built-in reset controller")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20200417184127.1319871-3-martin.blumenstingl@googlemail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:22 +02:00
Martin Blumenstingl
1fa1d1ceb0 clk: meson: meson8b: Fix the first parent of vid_pll_in_sel
[ Upstream commit da1978ac3d6cf278dedf5edbf350445a0fff2f08 ]

Use hdmi_pll_lvds_out as parent of the vid_pll_in_sel clock. It's not
easy to see that the vendor kernel does the same, but it actually does.
meson_clk_pll_ops in mainline still cannot fully recalculate all rates
from the HDMI PLL registers because some register bits (at the time of
writing it's unknown which bits are used for this) double the HDMI PLL
output rate (compared to simply considering M, N and FRAC) for some (but
not all) PLL settings.

Update the vid_pll_in_sel parent so our clock calculation works for
simple clock settings like the CVBS output (where no rate doubling is
going on). The PLL ops need to be fixed later on for more complex clock
settings (all HDMI rates).

Fixes: 6cb57c678bb70 ("clk: meson: meson8b: add the read-only video clock trees")
Suggested-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20200417184127.1319871-2-martin.blumenstingl@googlemail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:22 +02:00
Srinivas Kandagatla
9a624802e6 slimbus: ngd: get drvdata from correct device
[ Upstream commit b58c663059b484f7ff547d076a34cf6d7a302e56 ]

Get drvdata directly from parent instead of ngd dev, as ngd
dev can probe defer and previously set drvdata will become null.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20200417093618.7929-1-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:22 +02:00
Raghavendra Rao Ananta
793e15fb66 tty: hvc: Fix data abort due to race in hvc_open
[ Upstream commit e2bd1dcbe1aa34ff5570b3427c530e4332ecf0fe ]

Potentially, hvc_open() can be called in parallel when two tasks calls
open() on /dev/hvcX. In such a scenario, if the hp->ops->notifier_add()
callback in the function fails, where it sets the tty->driver_data to
NULL, the parallel hvc_open() can see this NULL and cause a memory abort.
Hence, serialize hvc_open and check if tty->private_data is NULL before
proceeding ahead.

The issue can be easily reproduced by launching two tasks simultaneously
that does nothing but open() and close() on /dev/hvcX.
For example:
$ ./simple_open_close /dev/hvc0 & ./simple_open_close /dev/hvc0 &

Signed-off-by: Raghavendra Rao Ananta <rananta@codeaurora.org>
Link: https://lore.kernel.org/r/20200428032601.22127-1-rananta@codeaurora.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:22 +02:00
Julian Wiedmann
eb3e85b337 s390/qdio: put thinint indicator after early error
[ Upstream commit 75e82bec6b2622c6f455b7a543fb5476a5d0eed7 ]

qdio_establish() calls qdio_setup_thinint() via qdio_setup_irq().
If the subsequent qdio_establish_thinint() fails, we miss to put the
DSCI again. Thus the DSCI isn't available for re-use. Given enough of
such errors, we could end up with having only the shared DSCI available.

Merge qdio_setup_thinint() into qdio_establish_thinint(), and deal with
such an error internally.

Fixes: 779e6e1c724d ("[S390] qdio: new qdio driver.")
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:22 +02:00
Takashi Iwai
d7852661f9 ALSA: usb-audio: Fix racy list management in output queue
[ Upstream commit 5b6cc38f3f3f37109ce72b60bda215a5f6892c0b ]

The linked list entry from FIFO is peeked at
queue_pending_output_urbs() but the actual element pop-out is
performed outside the spinlock, and it's potentially racy.

Do delete the link at the right place inside the spinlock.

Fixes: 8fdff6a319e7 ("ALSA: snd-usb: implement new endpoint streaming model")
Link: https://lore.kernel.org/r/20200424074016.14301-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:22 +02:00
Alexander Tsoy
aba41867dd ALSA: usb-audio: Improve frames size computation
[ Upstream commit f0bd62b64016508938df9babe47f65c2c727d25c ]

For computation of the the next frame size current value of fs/fps and
accumulated fractional parts of fs/fps are used, where values are stored
in Q16.16 format. This is quite natural for computing frame size for
asynchronous endpoints driven by explicit feedback, since in this case
fs/fps is a value provided by the feedback endpoint and it's already in
the Q format. If an error is accumulated over time, the device can
adjust fs/fps value to prevent buffer overruns/underruns.

But for synchronous endpoints the accuracy provided by these computations
is not enough. Due to accumulated error the driver periodically produces
frames with incorrect size (+/- 1 audio sample).

This patch fixes this issue by implementing a different algorithm for
frame size computation. It is based on accumulating of the remainders
from division fs/fps and it doesn't accumulate errors over time. This
new method is enabled for synchronous and adaptive playback endpoints.

Signed-off-by: Alexander Tsoy <alexander@tsoy.me>
Link: https://lore.kernel.org/r/20200424022449.14972-1-alexander@tsoy.me
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:22 +02:00
Xiyu Yang
3468bca1ea staging: gasket: Fix mapping refcnt leak when register/store fails
[ Upstream commit e3436ce60cf5f5eaedda2b8c622f69feb97595e2 ]

gasket_sysfs_register_store() invokes get_mapping(), which returns a
reference of the specified gasket_sysfs_mapping object to "mapping" with
increased refcnt.

When gasket_sysfs_register_store() returns, local variable "mapping"
becomes invalid, so the refcount should be decreased to keep refcount
balanced.

The reference counting issue happens in one exception handling path of
gasket_sysfs_register_store(). When gasket_dev is NULL, the function
forgets to decrease the refcnt increased by get_mapping(), causing a
refcnt leak.

Fix this issue by calling put_mapping() when gasket_dev is NULL.

Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Link: https://lore.kernel.org/r/1587618941-13718-1-git-send-email-xiyuyang19@fudan.edu.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:21 +02:00
Xiyu Yang
b3b4dcdc2b staging: gasket: Fix mapping refcnt leak when put attribute fails
[ Upstream commit 57a66838e1494cd881b7f4e110ec685736e8e3ca ]

gasket_sysfs_put_attr() invokes get_mapping(), which returns a reference
of the specified gasket_sysfs_mapping object to "mapping" with increased
refcnt.

When gasket_sysfs_put_attr() returns, local variable "mapping" becomes
invalid, so the refcount should be decreased to keep refcount balanced.

The reference counting issue happens in one path of
gasket_sysfs_put_attr(). When mapping attribute is unknown, the function
forgets to decrease the refcnt increased by get_mapping(), causing a
refcnt leak.

Fix this issue by calling put_mapping() when put attribute fails due to
unknown attribute.

Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Link: https://lore.kernel.org/r/1587618895-13660-1-git-send-email-xiyuyang19@fudan.edu.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:21 +02:00
Christoph Hellwig
0c884f3236 firmware: qcom_scm: fix bogous abuse of dma-direct internals
[ Upstream commit 459b1f86f1cba7de813fbc335df476c111feec22 ]

As far as the device is concerned the dma address is the physical
address.  There is no need to convert it to a physical address,
especially not using dma-direct internals that are not available
to drivers and which will interact badly with IOMMUs.  Last but not
least the commit introducing it claimed to just fix a type issue,
but actually changed behavior.

Fixes: 6e37ccf78a532 ("firmware: qcom_scm: Use proper types for dma mappings")
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20200414123136.441454-1-hch@lst.de
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:21 +02:00
Jonathan Marek
0c48b6df64 arm64: dts: qcom: fix pm8150 gpio interrupts
[ Upstream commit 61d2ca503d0b55d2849fd656ce51d8e1e9ba0b6c ]

This was mistakenly copied from the downstream dts, however the upstream
driver works differently.

I only tested this with the pm8150_gpios node (used with volume button),
but the 2 others should be the same.

Fixes: e92b61c8e775 ("arm64: dts: qcom: pm8150l: Add base dts file")
Fixes: 229d5bcad0d0 ("arm64: dts: qcom: pm8150b: Add base dts file")
Fixes: 5101f22a5c37 ("arm64: dts: qcom: pm8150: Add base dts file")
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Link: https://lore.kernel.org/r/20200420153543.14512-1-jonathan@marek.ca
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:21 +02:00
Vivek Goyal
2b5e027657 virtiofs: schedule blocking async replies in separate worker
[ Upstream commit bb737bbe48bea9854455cb61ea1dc06e92ce586c ]

In virtiofs (unlike in regular fuse) processing of async replies is
serialized.  This can result in a deadlock in rare corner cases when
there's a circular dependency between the completion of two or more async
replies.

Such a deadlock can be reproduced with xfstests:generic/503 if TEST_DIR ==
SCRATCH_MNT (which is a misconfiguration):

 - Process A is waiting for page lock in worker thread context and blocked
   (virtio_fs_requests_done_work()).
 - Process B is holding page lock and waiting for pending writes to
   finish (fuse_wait_on_page_writeback()).
 - Write requests are waiting in virtqueue and can't complete because
   worker thread is blocked on page lock (process A).

Fix this by creating a unique work_struct for each async reply that can
block (O_DIRECT read).

Fixes: a62a8ef9d97d ("virtio-fs: add virtiofs filesystem")
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:21 +02:00
Jason Yan
ff86bd6cca pinctrl: rza1: Fix wrong array assignment of rza1l_swio_entries
[ Upstream commit 4b4e8e93eccc2abc4209fe226ec89e7fbe9f3c61 ]

The rza1l_swio_entries referred to the wrong array rza1h_swio_pins,
which was intended to be rza1l_swio_pins. So let's fix it.

This is detected by the following gcc warning:

drivers/pinctrl/pinctrl-rza1.c:401:35: warning: ‘rza1l_swio_pins’
defined but not used [-Wunused-const-variable=]
 static const struct rza1_swio_pin rza1l_swio_pins[] = {
                                   ^~~~~~~~~~~~~~~

Fixes: 039bc58e73b77723 ("pinctrl: rza1: Add support for RZ/A1L")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Link: https://lore.kernel.org/r/20200417111604.19143-1-yanaijie@huawei.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:21 +02:00
Chad Dupuis
cd3f4ed1c5 scsi: qedf: Fix crash when MFW calls for protocol stats while function is still probing
[ Upstream commit ad40f5256095c68dc17c991eb976261d5ea2daaa ]

The MFW may make a call to qed and then to qedf for protocol statistics
while the function is still probing.  If this happens it's possible that
some members of the struct qedf_ctx may not be fully initialized which can
result in a NULL pointer dereference or general protection fault.

To prevent this, add a new flag call QEDF_PROBING and set it when the
__qedf_probe() function is active. Then in the qedf_get_protocol_tlv_data()
function we can check if the function is still probing and return
immediantely before any uninitialized structures can be touched.

Link: https://lore.kernel.org/r/20200416084314.18851-9-skashyap@marvell.com
Signed-off-by: Chad Dupuis <cdupuis@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:21 +02:00
Andy Shevchenko
a0a00156d5 gpio: dwapb: Append MODULE_ALIAS for platform driver
[ Upstream commit c58220cba2e03618659fa7d5dfae31f5ad4ae9d0 ]

The commit 3d2613c4289f
  ("GPIO: gpio-dwapb: Enable platform driver binding to MFD driver")
introduced a use of the platform driver but missed to add the following line
to it:
  MODULE_ALIAS("platform:gpio-dwapb");

Add this to get driver loaded automatically if platform device is registered.

Fixes: 3d2613c4289f ("GPIO: gpio-dwapb: Enable platform driver binding to MFD driver")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Serge Semin <fancer.lancer@gmail.com>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Link: https://lore.kernel.org/r/20200415141534.31240-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:21 +02:00
Yishai Hadas
02416142fd RDMA/mlx5: Fix udata response upon SRQ creation
[ Upstream commit cf26deff9036cd3270af562dbec545239e5c7f07 ]

Fix udata response upon SRQ creation to use the UAPI structure (i.e.
mlx5_ib_create_srq_resp). It did not zero the reserved field in userspace.

Fixes: e126ba97dba9 ("mlx5: Add driver for Mellanox Connect-IB adapters")
Link: https://lore.kernel.org/r/20200406173540.1466477-1-leon@kernel.org
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:20 +02:00
Vincent Stehlé
7acbadd1aa ARM: dts: sun8i-h2-plus-bananapi-m2-zero: Fix led polarity
[ Upstream commit 34b6826df7462c541752cf8b1de2691b26d78ae0 ]

The PWR-LED on the bananapi m2 zero board is on when gpio PL10 is low.
This has been verified on a board and in the schematics [1].

[1]: http://wiki.banana-pi.org/Banana_Pi_BPI-M2_ZERO#Documents

Fixes: 8b8061fcbfae ("ARM: dts: sun8i: h2+: add support for Banana Pi M2 Zero board")
Signed-off-by: Vincent Stehlé <vincent.stehle@laposte.net>
Cc: Icenowy Zheng <icenowy@aosc.io>
Cc: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:20 +02:00
Amit Kucheria
ef0c0fbf1d arm64: dts: qcom: msm8916: remove unit name for thermal trip points
[ Upstream commit fe2aff0c574d206f34f1864d5a0b093694c27142 ]

The thermal trip points have unit name but no reg property, so we can
remove them. It also fixes the following warnings from 'make dtbs_check'
after adding the thermal yaml bindings.

arch/arm64/boot/dts/qcom/apq8016-sbc.dt.yaml: thermal-zones:
gpu-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/apq8016-sbc.dt.yaml: thermal-zones:
camera-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/apq8016-sbc.dt.yaml: thermal-zones:
modem-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'

arch/arm64/boot/dts/qcom/msm8916-mtp.dt.yaml: thermal-zones:
gpu-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8916-mtp.dt.yaml: thermal-zones:
camera-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8916-mtp.dt.yaml: thermal-zones:
modem-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Link: https://lore.kernel.org/r/2d3d045c18a2fb85b28cf304aa11ae6e6538d75e.1585562459.git.amit.kucheria@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:20 +02:00
Nilesh Javali
f37623862e scsi: qedi: Do not flush offload work if ARP not resolved
[ Upstream commit 927527aea0e2a9c1d336c7d33f77f1911481d008 ]

For an unreachable target, offload_work is not initialized and the endpoint
state is set to OFLDCONN_NONE. This results in a WARN_ON due to the check
of the work function field being set to zero.

------------[ cut here ]------------
WARNING: CPU: 24 PID: 18587 at ../kernel/workqueue.c:3037 __flush_work+0x1c1/0x1d0
:
Hardware name: HPE ProLiant DL380 Gen10/ProLiant DL380 Gen10, BIOS U30 02/01/2020
RIP: 0010:__flush_work+0x1c1/0x1d0
Code: ba 6d 00 03 80 c9 f0 eb b6 48 c7 c7 20 ee 6c a4 e8 52 d3 04 00 0f 0b 31 c0 e9 d1 fe ff
ff 48 c7 c7 20 ee 6c a4 e8 3d d3 04 00 <0f> 0b 31 c0 e9 bc fe ff ff e8 11 f3 f
 00 31 f6
RSP: 0018:ffffac5a8cd47a80 EFLAGS: 00010282
RAX: 0000000000000024 RBX: ffff98d68c1fcaf0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff98ce9fd99898 RDI: ffff98ce9fd99898
RBP: ffff98d68c1fcbc0 R08: 00000000000006fa R09: 0000000000000001
R10: ffffac5a8cd47b50 R11: 0000000000000001 R12: 0000000000000000
R13: 000000000000489b R14: ffff98d68c1fc800 R15: ffff98d692132c00
FS:  00007f65f7f62280(0000) GS:ffff98ce9fd80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd2435e880 CR3: 0000000809334003 CR4: 00000000007606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
 ? class_create_release+0x40/0x40
 ? klist_put+0x2c/0x80
 qedi_ep_disconnect+0xdd/0x400 [qedi]
 iscsi_if_ep_disconnect.isra.20+0x59/0x70 [scsi_transport_iscsi]
 iscsi_if_rx+0x129b/0x1670 [scsi_transport_iscsi]
 ? __netlink_lookup+0xe7/0x160
 netlink_unicast+0x21d/0x300
 netlink_sendmsg+0x30f/0x430
 sock_sendmsg+0x5b/0x60
 ____sys_sendmsg+0x1e2/0x240
 ? copy_msghdr_from_user+0xd9/0x160
 ___sys_sendmsg+0x88/0xd0
 ? ___sys_recvmsg+0xa2/0xe0
 ? hrtimer_try_to_cancel+0x25/0x100
 ? do_nanosleep+0x9c/0x170
 ? __sys_sendmsg+0x5e/0xa0
 __sys_sendmsg+0x5e/0xa0
 do_syscall_64+0x60/0x1f0
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f65f6f16107
Code: 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 80 00 00 00 00 8b 05 aa d2 2b 00 48 63 d2 48
63 ff 85 c0 75 18 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 59 f3 c3 0f 1f 8
    0 00 00 00 00 53 48 89 f3 48
 RSP: 002b:00007ffd24367ca8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
 RAX: ffffffffffffffda RBX: 000055a7aeaaf110 RCX: 00007f65f6f16107
 RDX: 0000000000000000 RSI: 00007ffd24367cc0 RDI: 0000000000000003
 RBP: 0000000000000070 R08: 0000000000000000 R09: 0000000000000000
 R10: 000000000000075c R11: 0000000000000246 R12: 00007ffd24367cc0
 R13: 000055a7ae560008 R14: 00007ffd24367db0 R15: 0000000000000000
 ---[ end trace 54f499c05d41f8bb ]---

Only flush if the connection endpoint state if different from
OFLDCONN_NONE.

[mkp: clarified commit desc]

Link: https://lore.kernel.org/r/20200408064332.19377-5-mrangankar@marvell.com
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Manish Rangankar <mrangankar@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:20 +02:00
Hsin-Yi Wang
0e5d7bff3b arm64: dts: mt8173: fix unit name warnings
[ Upstream commit 72b29215aced394d01ca25e432963b619daa0098 ]

Fixing several unit name warnings:

Warning (unit_address_vs_reg): /oscillator@0: node has a unit name, but no reg property
Warning (unit_address_vs_reg): /oscillator@1: node has a unit name, but no reg property
Warning (unit_address_vs_reg): /oscillator@2: node has a unit name, but no reg property
Warning (unit_address_vs_reg): /thermal-zones/cpu_thermal/trips/trip-point@0: node has a unit name, but no reg property
Warning (unit_address_vs_reg): /thermal-zones/cpu_thermal/trips/trip-point@1: node has a unit name, but no reg property
Warning (unit_address_vs_reg): /thermal-zones/cpu_thermal/trips/cpu_crit@0: node has a unit name, but no reg property
Warning (unit_address_vs_reg): /thermal-zones/cpu_thermal/cooling-maps/map@0: node has a unit name, but no reg property
Warning (unit_address_vs_reg): /thermal-zones/cpu_thermal/cooling-maps/map@1: node has a unit name, but no reg property
Warning (unit_address_vs_reg): /reserved-memory/vpu_dma_mem_region: node has a reg or ranges property, but no unit name
Warning (simple_bus_reg): /soc/pinctrl@10005000: simple-bus unit address format error, expected "1000b000"
Warning (simple_bus_reg): /soc/interrupt-controller@10220000: simple-bus unit address format error, expected "10221000"

Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Link: https://lore.kernel.org/r/20200210063523.133333-4-hsinyi@chromium.org
[mb: drop fixes for '_' in property name]
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:20 +02:00
Chen Zhou
7bf3a213f7 staging: greybus: fix a missing-check bug in gb_lights_light_config()
[ Upstream commit 9bb086e5ba9495ac150fbbcc5c8c2bccc06261dd ]

In gb_lights_light_config(), 'light->name' is allocated by kstrndup().
It returns NULL when fails, add check for it.

Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
Acked-by: Rui Miguel Silva <rmfrfs@gmail.com>
Link: https://lore.kernel.org/r/20200401030017.100274-1-chenzhou10@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24 17:50:20 +02:00