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Pull HID fix from Jiri Kosina:
"This has a build fix for architectures where memcmp() is macro, from
Jiri Slaby"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: microsoft: do not use compound literal - fix build
On AArch64, the meaning of the XN bit has changed to UXN (user). The PXN
(privileged) bit must be set to prevent kernel execution. Without the
PXN bit set, the CPU may speculatively access device memory. This patch
ensures that all the mappings that the kernel must not execute from
(including user mappings) have the PXN bit set.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Here are some USB fixes for the 3.7 tree.
Nothing huge here, just a number of tiny bugfixes resolving issues that
have been found, and two reverts of patches that were found to have
caused problems.
All of these have been in linux-next already.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg Kroah-Hartman:
"Here are some USB fixes for the 3.7 tree.
Nothing huge here, just a number of tiny bugfixes resolving issues
that have been found, and two reverts of patches that were found to
have caused problems.
All of these have been in linux-next already.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'usb-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
Revert "USB/host: Cleanup unneccessary irq disable code"
USB: option: add Alcatel X220/X500D USB IDs
USB: option: add Novatel E362 and Dell Wireless 5800 USB IDs
USB: keyspan: fix typo causing GPF on open
USB: fix build with XEN and EARLY_PRINTK_DBGP enabled but USB_SUPPORT disabled
USB: usb_wwan: fix bulk-urb allocation
usb: otg: Fix build errors if USB_MUSB_OMAP2PLUS is selected as module
usb: musb: ux500: fix 'musbid' undeclared error in ux500_remove()
Revert "usb: musb: use DMA mode 1 whenever possible"
Here are two TTY driver fixes for 3.7-rc5.
They resolve a bug in the hvc driver that has been reported, and fix a
problem with the list of device ids in the max310x serial driver.
Both have been in linux-next for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull TTY fixes from Greg Kroah-Hartman:
"Here are two TTY driver fixes for 3.7-rc5.
They resolve a bug in the hvc driver that has been reported, and fix a
problem with the list of device ids in the max310x serial driver.
Both have been in linux-next for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'tty-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
tty: serial: max310x: Add terminating entry for spi_device_id table
TTY: hvc_console, fix port reference count going to zero prematurely
Here is a single patch, a revert of an android driver patch, that
resolves a bug that has been reported in the Android alarm driver.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging tree fix from Greg Kroah-Hartman:
"Here is a single patch, a revert of an android driver patch, that
resolves a bug that has been reported in the Android alarm driver.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'staging-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
Revert "Staging: Android alarm: IOCTL command encoding fix"
another one fixing the check of a GPIO for USB host overcurrent.
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Merge tag 'at91-fixes' of git://github.com/at91linux/linux-at91 into fixes
From Nicolas Ferre <nicolas.ferre@atmel.com>:
Two little fixes, one related to the move to sparse irq and
another one fixing the check of a GPIO for USB host overcurrent.
* tag 'at91-fixes' of git://github.com/at91linux/linux-at91:
ARM: at91/usbh: fix overcurrent gpio setup
ARM: at91/AT91SAM9G45: fix crypto peripherals irq issue due to sparse irq support
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Pull s390 patches from Martin Schwidefsky:
"Some more bug fixes and a config change.
The signal bug is nasty, if the clock_gettime vdso function is
interrupted by a signal while in access-register-mode we end up with
an endless signal loop until the signal stack is full. The config
change is for aligned struct pages, gives us 8% improvement with
hackbench."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/3215: fix tty close handling
s390/mm: have 16 byte aligned struct pages
s390/gup: fix access_ok() usage in __get_user_pages_fast()
s390/gup: add missing TASK_SIZE check to get_user_pages_fast()
s390/topology: fix core id vs physical package id mix-up
s390/signal: set correct address space control
Pull drm fixes from Dave Airlie:
"All pretty normal: one TTM oops fix, one radeon, a few intel and a
vmwgfx fix."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/ttm: remove unneeded preempt_disable/enable
ttm: Clear the ttm page allocated from high memory zone correctly
vmwgfx: return an -EFAULT if copy_to_user() fails
drm/radeon: fix logic error in atombios_encoders.c
drm/i915: do not ignore eDP bpc settings from vbt
drm/i915/sdvo: clean up connectors on intel_sdvo_init() failures
drm/i915/crt: fix DPMS standby and suspend mode handling
clk-provider.h. This pull request fixes the regression by removing inline
usage from those function declarations.
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Merge tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mturquette/linux
Pull another clk layer fix from Michael Turquette:
"GCC 4.7 users get compilation errors from unnecessary use of inline in
clk-provider.h. This pull request fixes the regression by removing
inline usage from those function declarations."
* tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mturquette/linux:
clk: remove inline usage from clk-provider.h
This patch sets HPM (Host power mask bit) to bit 16 according to i.MX
Reference Manual. Falsely it was set to bit 8, but this controls pull-up
Impedance.
Reported-by: Michael Burkey <mdburkey@gmail.com>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com>
Acked-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The error-valued pointer clk is used for the arg of kfree, it should be
kfree(gate) if clk_register() return ERR_PTR().
dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This macro is not used anymove in atmel-mci driver. It has been removed
by a patch that was dealing with dw_dmac.c e2b35f3:
(dmaengine/dw_dmac: Fix dw_dmac user drivers to adapt to slave_config changes)
We are now using the dmaengine API to specify the slave DMA parameters:
dmaengine_slave_config().
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Cc: Chris Ball <cjb@laptop.org>
Cc: <linux-mmc@vger.kernel.org>
Use gpio_is_valid also for overcurrent pins (which are currently
negative in many board files).
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Spare irq support introduced by commit 8fe82a5 (ARM: at91: sparse irq support)
involves to add the NR_IRQS_LEGACY offset to irq number.
Signed-off-by: Nicolas Royer <nicolas@eukrea.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Eric Bénard <eric@eukrea.com>
Tested-by: Eric Bénard <eric@eukrea.com>
Cc: stable@vger.kernel.org # 3.6
The logic in the BLA mechanism may decide to drop broadcast packets
because the node may still be in the setup phase. For this reason,
further broadcast processing like the early client detection mechanism
must be done only after the BLA check.
This patches moves the invocation to BLA before any other broadcast
processing.
This was introduced 30cfd02b60e1cb16f5effb0a01f826c5bb7e4c59
("batman-adv: detect not yet announced clients")
Reported-by: Glen Page <glen.page@thet.net>
Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
The "early client detection" mechanism must not add clients belonging
to other backbone nodes. Such clients must be reached by directly
using the LAN instead of the mesh.
This was introduced by 30cfd02b60e1cb16f5effb0a01f826c5bb7e4c59
("batman-adv: detect not yet announced clients")
Reported-by: Glen Page <glen.page@thet.net>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
When a TT response with the full table is sent, the client flags
should be sent as well. This patch fix the flags assignment when
populating the tt_response to send back
This was introduced by 30cfd02b60e1cb16f5effb0a01f826c5bb7e4c59
("batman-adv: detect not yet announced clients")
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Flags carried by a change_entry have to be always copied into the
client entry as they may contain important attributes (e.g.
TT_CLIENT_WIFI).
For instance, a client added by means of the "early detection
mechanism" has no flag set at the beginning, so they must be updated once the
proper ADD event is received.
This was introduced by 30cfd02b60e1cb16f5effb0a01f826c5bb7e4c59
("batman-adv: detect not yet announced clients")
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
This patch simply makes the tilegx net driver call request_irq with a
non-null name. It makes the output in /proc/interrupts more obvious, but
also helps tools that don't expect to find null there.
Signed-off-by: Simon Marchi <simon.marchi@polymtl.ca>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This will fix warnings like following when CONFIG_PM_SLEEP is not set:
warning: 'xxx_suspend' defined but not used [-Wunused-function]
warning: 'xxx_resume' defined but not used [-Wunused-function]
Because
SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn)
Only references the callbacks on CONFIG_PM_SLEEP (instead of CONFIG_PM).
Cc: Viresh Kumar <viresh.linux@gmail.com>
Cc: linux-ide@vger.kernel.org
Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
If kdump is triggered with pending IO, controller may not respond causing
kdump to fail.
http://marc.info/?l=linux-ide&m=133032255424658&w=2
During error recovery ata_do_dev_read_id never completes due hang
in mmio_insw.
ata_do_dev_read_id
ata_sff_data_xfer
ioread16_rep
mmio_insw
if DMA start bit is cleared before reset, PIO command is successful
and kdump succeeds.
Signed-off-by: David Milburn <dmilburn@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
ata_timing_find_mode could return NULL which is not checked by all
low-level ATA drivers using it and cause a NULL ptr deref. Warn at least
so that possible issues can get fixed easily.
Signed-off-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The ahci_highbank_probe function is incorrectly marked as __init,
which means it can get discarded at boot time, which might be
a problem if for some reason the device only becomes operational
after loading another module.
Using __devinit instead avoids seeing this warning for every build:
WARNING: vmlinux.o(.data+0xf7b0): Section mismatch in reference from the
variable ahci_highbank_driver to the function .init.text:ahci_highbank_probe()
The variable ahci_highbank_driver references
the function __init ahci_highbank_probe()
If the reference is valid then annotate the
variable with __init* or __refdata (see linux/init.h) or name the variable:
*_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Mark Langsdorf <mark.langsdorf@calxeda.com>
Cc: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
PATA arasan driver expects the clock to be set to 166 MHz for proper
functioning. This patch sets clk to 166 MHz in probe.
Signed-off-by: Vipul Kumar Samar <vipulkumar.samar@st.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
commit 6b66d95895c149cbc04d4fac5a2f5477c543a8ae didn't handle SATA PMP
case in ata_acpi_bind_device and will cause a NULL ptr dereference when
user attached a SATA drive to the PMP port. Fix this by checking PMP
support.
This bug is reported by Dan van der Ster in the following bugzilla page:
https://bugzilla.kernel.org/show_bug.cgi?id=48211
Reported-by: Dan van der Ster <dan@vanderster.com>
Tested-by: Dan van der Ster <dan@vanderster.com>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Tested-by: Simon <tangouniform@sbcglobal.net>
Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
It seems git has been getting confused by the very similar contexts
for the speaker DAIs and has been applying patches to the wrong places
causing all sorts of confusion. Fix this up by hand.
Reported-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Daniel writes:
Just a few small things to fix regressions, somehow all patches from Jani:
- Fix dpms confusion about which platforms support intermediate modes on
vga.
- Revert the "ignore vbt for eDP bpc" patch, it breaks machines. This will
annoy mbp retina owners again, but windows machines seem to _really_
depend upon this. We can try to quirk the mbp retinas again in 3.8 and
backport the patch.
- Fix connector leaks when the sdvo setup failed, resulted in an OOPS
later on when trying to probe that connector (with it's encoder kfree'd
already).
* 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel:
drm/i915: do not ignore eDP bpc settings from vbt
drm/i915/sdvo: clean up connectors on intel_sdvo_init() failures
drm/i915/crt: fix DPMS standby and suspend mode handling
It is unnecessary to disable preemption explicitly while calling
copy_highpage(). Because copy_highpage() will do it again through
kmap_atomic/kunmap_atomic.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
The TTM page can be allocated from high memory. In such case it is
wrong to use the page_address(page) as the virtual address for the high memory
page.
bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=50241
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Cc: stable@vger.kernel.org
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
copy_to_user() returns the number of bytes remaining to be copied, but
we want to return a negative error code here. I fixed a couple of these
last year, but I missed this one.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Check (ha->addr == dev->dev_addr) is always true because dev_addr_init()
sets this. Correct the check to behave properly on addr removal.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently if a socket was repaired with a few packet in a write queue,
a kernel bug may be triggered:
kernel BUG at net/ipv4/tcp_output.c:2330!
RIP: 0010:[<ffffffff8155784f>] tcp_retransmit_skb+0x5ff/0x610
According to the initial realization v3.4-rc2-963-gc0e88ff,
all skb-s should look like already posted. This patch fixes code
according with this sentence.
Here are three points, which were not done in the initial patch:
1. A tcp send head should not be changed
2. Initialize TSO state of a skb
3. Reset the retransmission time
This patch moves logic from tcp_sendmsg to tcp_write_xmit. A packet
passes the ussual way, but isn't sent to network. This patch solves
all described problems and handles tcp_sendpages.
Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: James Morris <jmorris@namei.org>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: Patrick McHardy <kaber@trash.net>
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Acked-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Users of GCC 4.7 have reported compiler errors due to having inline
applied to function declarations in clk-provider.h. The definitions
exist in drivers/clk/clk.c. An example error:
In file included from arch/arm/mach-omap2/clockdomain.c:25:0:
arch/arm/mach-omap2/clockdomain.c: In function ‘clkdm_clk_disable’:
include/linux/clk-provider.h:338:12: error: inlining failed in call to always_inline ‘__clk_get_enable_count’: function body not available
arch/arm/mach-omap2/clockdomain.c:1001:28: error: called from here
make[1]: *** [arch/arm/mach-omap2/clockdomain.o] Error 1
make: *** [arch/arm/mach-omap2] Error 2
This patch removes the use of inline from include/linux/clk-provider.h
but keeps the function definitions in drivers/clk/clk.c as inlined since
they are one-liners.
Signed-off-by: Igor Mazanov <i.mazanov@gmail.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
[mturquette@linaro.org: improved subject, added changelog]
but only fixed now because no one gave enough material for debugging.
Anyway, these fix the problem that sometimes after a power cut the
file-system is not mountable with the following symptom:
grab_empty_leb: could not find an empty LEB
The fixes make the file-system mountable again.
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Merge tag 'upstream-3.7-rc6' of git://git.infradead.org/linux-ubifs
Pull UBIFS fixes from Artem Bityutskiy:
"Two patches which fix a problem reported by several people in the
past, but only fixed now because no one gave enough material for
debugging.
Anyway, these fix the problem that sometimes after a power cut the
file-system is not mountable with the following symptom:
grab_empty_leb: could not find an empty LEB
The fixes make the file-system mountable again."
* tag 'upstream-3.7-rc6' of git://git.infradead.org/linux-ubifs:
UBIFS: fix mounting problems after power cuts
UBIFS: introduce categorized lprops counter
kernel booting on a APEI-enabled machines w/ CONFIG_PSTORE_CONSOLE=y (this
is N by default, though).
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Merge tag 'for-v3.7-fixes' of git://git.infradead.org/users/cbou/linux-pstore
Pull pstore fix from Anton Vorontsov:
"A small fixup for the persistent storage subsystem. The bug can
prevent kernel booting on a APEI-enabled machines w/ PSTORE_CONSOLE=y
(this is N by default, though)."
* tag 'for-v3.7-fixes' of git://git.infradead.org/users/cbou/linux-pstore:
pstore: Fix NULL pointer dereference in console writes
Pill i2c fixes from Jean Delvare.
Well, "fixes".. The biggest patch here is actually Jan marking Wolfram
Sang as the main i2c subsystem maintainer, with Jan staying on as the PC
controller maintainer.
* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
i2c-mux-pinctrl: Fix probe error path
MAINTAINERS: i2c: 7 years, this is it
A few fixes for teardown issues that will be rarely seen, plus a fix for
a silly bug in regulator_is_supported_voltage() which shows how often
the answer to the question should be false.
The supported voltage commit is very new as I just edited to add a Cc to
stable, the code itself has been in -next.
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Merge tag 'regulator-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"A few fixes for teardown issues that will be rarely seen, plus a fix
for a silly bug in regulator_is_supported_voltage() which shows how
often the answer to the question should be false.
The supported voltage commit is very new as I just edited to add a Cc
to stable, the code itself has been in -next."
* tag 'regulator-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: fix voltage check in regulator_is_supported_voltage()
regulator: core: Avoid deadlock when regulator_register fails
Regulator: core: Unregister when gpio request fails.
The only large LOC is seen in WM5102 driver, just writing a bunch of
register updates, but the actual code change is small.
Other than that, all small fixes suitable for rc6.
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Merge tag 'sound-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"The only large LOC is seen in WM5102 driver, just writing a bunch of
register updates, but the actual code change is small. Other than
that, all small fixes suitable for rc6."
* tag 'sound-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: usb-audio: Fix mutex deadlock at disconnection
ALSA: fm801: precedence bug in snd_fm801_tea575x_get_pins()
ALSA: es1968: precedence bug in snd_es1968_tea575x_get_pins()
ALSA: hda - Add a missing quirk entry for iMac 9,1
ASoC: core: Double control update err for snd_soc_put_volsw_sx
ASoC: dapm: Use card_list during DAPM shutdown
ASoC: cs42l52: fix the return value of cs42l52_set_fmt()
ASoC: bells: Correct type in sub speaker DAI name for WM5102
ASoC: wm8978: pll incorrectly configured when codec is master
ASoC: mxs-saif: Fix channel swap for 24-bit format
ASoC: bells: Select WM1250-EV1 Springbank audio I/O module
ASoC: bells: Add missing select of WM0010
ASoC: mxs-saif: Add MODULE_ALIAS
ASoC: wm5102: Write register value corrections after SYSCLK is enabled
Commit 13d782f ("sctp: Make the proc files per network namespace.")
changed the /proc/net/sctp/ struct file_operations opener functions to
use single_open_net() and seq_open_net().
Avoid leaking memory by using single_release_net() and seq_release_net()
as the release functions.
Discovered with Trinity (the syscall fuzzer).
Signed-off-by: Tommi Rantala <tt.rantala@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
and clean up related improvment to the SoC detection.
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Merge tag 'omap-for-v3.8/cleanup-fixes-part2-v2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup
From Tony Lindgren <tony@atomide.com>:
One build fix for recent clean up when CONFIG_PM is not set
and clean up related improvment to the SoC detection.
* tag 'omap-for-v3.8/cleanup-fixes-part2-v2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP4: ID: Improve features detection and check
ARM: OMAP: Fix compile for OMAP_PM_NOOP if PM is not selected
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Second set of OMAP PRCM cleanups for 3.8.
These patches remove the use of omap_prcm_get_reset_sources() from the
OMAP watchdog driver, and remove mach-omap2/prcm.c and
plat-omap/include/plat/prcm.h.
Basic test logs for this branch on top of Tony's cleanup-prcm branch
at commit 7fc54fd3084457c7f11b9e2e1e3fcd19a3badc33 are here:
http://www.pwsan.com/omap/testlogs/prcm_cleanup_b_3.8/20121108151646/
However, cleanup-prcm at 7fc54fd3 does not include some fixes
that are needed for a successful test. With several reverts,
fixes, and workarounds applied, the following test logs were
obtained:
http://www.pwsan.com/omap/testlogs/TEST_prcm_cleanup_b_3.8/20121108151930/
which indicate that the series tests cleanly.
This second pull request updates one of the patches which broke
with rmk's allnoconfigs, and also updates the tag description to
indicate that 7fc54fd3 is building cleanly here.
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Merge tag 'omap-for-v3.8/cleanup-prcm-part2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup
From Tony Lindgren <tony@atomide.com>:
More PRCM cleanups via Paul Walmsley <paul@pwsan.com>:
Second set of OMAP PRCM cleanups for 3.8.
These patches remove the use of omap_prcm_get_reset_sources() from the
OMAP watchdog driver, and remove mach-omap2/prcm.c and
plat-omap/include/plat/prcm.h.
Basic test logs for this branch on top of Tony's cleanup-prcm branch
at commit 7fc54fd3084457c7f11b9e2e1e3fcd19a3badc33 are here:
http://www.pwsan.com/omap/testlogs/prcm_cleanup_b_3.8/20121108151646/
However, cleanup-prcm at 7fc54fd3 does not include some fixes
that are needed for a successful test. With several reverts,
fixes, and workarounds applied, the following test logs were
obtained:
http://www.pwsan.com/omap/testlogs/TEST_prcm_cleanup_b_3.8/20121108151930/
which indicate that the series tests cleanly.
This second pull request updates one of the patches which broke
with rmk's allnoconfigs, and also updates the tag description to
indicate that 7fc54fd3 is building cleanly here.
* tag 'omap-for-v3.8/cleanup-prcm-part2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (27 commits)
ARM: OMAP2: Fix compillation error in cm_common
ARM: OMAP2+: PRCM: remove obsolete prcm.[ch]
ARM: OMAP2+: hwmod: call to _omap4_disable_module() should use the SoC-specific call
ARM: OMAP2+: PRCM: consolidate PRCM-related timeout macros
ARM: OMAP2+: PRCM: split and relocate the PRM/CM globals setup
ARM: OMAP2+: PRCM: remove omap2_cm_wait_idlest()
ARM: OMAP2+: CM/clock: convert _omap2_module_wait_ready() to use SoC-independent CM functions
ARM: OMAP2xxx: APLL/CM: convert to use omap2_cm_wait_module_ready()
ARM: OMAP2+: board files: use SoC-specific system restart functions
ARM: OMAP2+: PRCM: create SoC-specific chip restart functions
ARM: OMAP2xxx: clock: move virt_prcm_set code into clkt2xxx_virt_prcm_set.c
ARM: OMAP2xxx: clock: remove global 'dclk' variable
ARM: OMAP2/3: PRM: add SoC reset functions (using the CORE DPLL method)
ARM: OMAP2+: common: remove mach-omap2/common.c globals and map_common_io code
ARM: OMAP2+: PRCM: remove omap_prcm_get_reset_sources()
watchdog: OMAP: use standard GETBOOTSTATUS interface; use platform_data fn ptr
ARM: OMAP2+: WDT: move init; add read_reset_sources pdata function pointer
ARM: OMAP1: CGRM: fix omap1_get_reset_sources() return type
ARM: OMAP2+: PRM: create PRM reset source API for the watchdog timer driver
ARM: OMAP1: create read_reset_sources() function (for initial use by watchdog)
...
Conflicts:
arch/arm/mach-omap2/cm33xx.c
arch/arm/mach-omap2/io.c
arch/arm/mach-omap2/prm_common.c
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
support for omaps.
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Merge tag 'omap-for-v3.8/cleanup-fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup
From: Tony Lindgren <tony@atomide.com>:
Minor fixes to the clean-up done for ARM common multi-platform
support for omaps.
* tag 'omap-for-v3.8/cleanup-fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: remove duplicated include from board-overo.c
ARM: OMAP: debug-leds: Use resource_size instead of hard coded macro
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The 3215 console always has the RAW3215_FIXED flag set, which causes
raw3215_shutdown() not to wait for outstanding I/O requests if an attached
tty gets closed.
The flag however can be simply removed, so we can guarantee that all requests
belonging to the tty have been processed when the tty is closed.
However the tasklet that belongs to the 3215 device may be scheduled even if
there is no tty attached anymore, since we have a race between console and tty
processing.
Thefore unconditional tty_wakekup() in raw3215_wakeup() can cause the following
NULL pointer dereference:
3.465368 Unable to handle kernel pointer dereference at virtual kernel address (null)
3.465448 Oops: 0004 #1 SMP
3.465454 Modules linked in:
3.465459 CPU: 1 Not tainted 3.6.0 #1
3.465462 Process swapper/1 (pid: 0, task: 000000003ffa4428, ksp: 000000003ffb7ce0)
3.465466 Krnl PSW : 0404100180000000 0000000000162f86 (__wake_up+0x46/0xb8)
3.465480 R:0 T:1 IO:0 EX:0 Key:0 M:1 W:0 P:0 AS:0 CC:1 PM:0 EA:3
Krnl GPRS: fffffffffffffffe 0000000000000000 0000000000000160 0000000000000001
3.465492 0000000000000001 0000000000000004 0000000000000004 000000000096b490
3.465499 0000000000000001 0000000000000100 0000000000000001 0000000000000001
3.465506 070000003fc87d60 0000000000000160 000000003fc87d68 000000003fc87d00
3.465526 Krnl Code: 0000000000162f76: e3c0f0a80004 lg %r12,168(%r15)
0000000000162f7c: 58000370 l %r0,880
#0000000000162f80: c007ffffffff00 xilf %r0,4294967295
>0000000000162f86: ba102000 cs %r1,%r0,0(%r2)
0000000000162f8a: 1211 ltr %r1,%r1
0000000000162f8c: a774002f brc 7,162fea
0000000000162f90: b904002d lgr %r2,%r13
0000000000162f94: b904003a lgr %r3,%r10
3.465597 Call Trace:
3.465599 (<0400000000000000> 0x400000000000000)
3.465602 <000000000048c77e> raw3215_wakeup+0x2e/0x40
3.465607 <0000000000134d66> tasklet_action+0x96/0x168
3.465612 <000000000013423c> __do_softirq+0xd8/0x21c
3.465615 <0000000000134678> irq_exit+0xa8/0xac
3.465617 <000000000046c232> do_IRQ+0x182/0x248
3.465621 <00000000005c8296> io_return+0x0/0x8
3.465625 <00000000005c7cac> vtime_stop_cpu+0x4c/0xb8
3.465629 (<0000000000194e06> tick_nohz_idle_enter+0x4e/0x74)
3.465633 <0000000000104760> cpu_idle+0x170/0x184
3.465636 <00000000005b5182> smp_start_secondary+0xd6/0xe0
3.465641 <00000000005c86be> restart_int_handler+0x56/0x6c
3.465643 <0000000000000000> 0x0
3.465645 Last Breaking-Event-Address:
3.465647 <0000000000403136> tty_wakeup+0x46/0x98
3.465652
3.465654 Kernel panic - not syncing: Fatal exception in interrupt
01: HCPGIR450W CP entered; disabled wait PSW 00020001 80000000 00000000 0010F63C
The easiest solution is simply to check if tty is NULL in the tasklet.
If it is NULL nothing is to do (no tty attached), otherwise tty_wakeup()
can be called, since we hold a reference to the tty.
This is not nice... but it is a small patch and it works.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
On Thu, 2012-11-01 at 16:45 -0700, Michel Lespinasse wrote:
> Looking at the arch/parisc/kernel/sys_parisc.c implementation of
> get_shared_area(), I do have a concern though. The function basically
> ignores the pgoff argument, so that if one creates a shared mapping of
> pages 0-N of a file, and then a separate shared mapping of pages 1-N
> of that same file, both will have the same cache offset for their
> starting address.
>
> This looks like this would create obvious aliasing issues. Am I
> misreading this ? I can't understand how this could work good enough
> to be undetected, so there must be something I'm missing here ???
This turns out to be correct and we need to pay attention to the pgoff as
well as the address when creating the virtual address for the area.
Fortunately, the bug is rarely triggered as most applications which use pgoff
tend to use large values (git being the primary one, and it uses pgoff in
multiples of 16MB) which are larger than our cache coherency modulus, so the
problem isn't often seen in practise.
Reported-by: Michel Lespinasse <walken@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
