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Only call pm_runtime_get_sync if the device has a parent. This
change fixes a crash in the tpm_vtpm_proxy driver since that
driver does not have a parent device.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
open() method for event log ascii and binary bios measurements file
operations are very similar. This patch refactors the code into a
single open() call by passing seq_operations as i_node->private data.
Suggested-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Nayna Jain <nayna@linux.vnet.ibm.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Newly added support of TPM 2.0 eventlog securityfs pseudo files in tpm
device driver consumes device tree bindings representing I2C based
Physical TPM. This patch adds the documentation for corresponding device
tree bindings of I2C based Physical TPM. These bindings are similar to
vtpm device tree bindings being used on IBM Power7+ and Power8 Systems
running PowerVM.
Suggested-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Nayna Jain <nayna@linux.vnet.ibm.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Virtual TPM, which is being used on IBM POWER7+ and POWER8 systems running
POWERVM, is currently supported by tpm device driver but lacks the
documentation. This patch adds the missing documentation for the existing
support.
Suggested-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Nayna Jain <nayna@linux.vnet.ibm.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
This is no longer necessary, all calls to tpm_chip_unregister happen
in remove() callbacks.
Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Reviewed-by: Tomas Winkler <tomas.winkler@intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
tpm_chip_unregister can only be called after tpm_chip_register.
devm manages the allocation so no unwind is needed here.
Cc: stable@vger.kernel.org
Fixes: afb5abc262 ("tpm: two-phase chip management functions")
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
The tis driver does a tpm_get_timeouts out side of tpm_chip_register,
and tpm_get_timeouts can print a message, resulting in two prints, eg:
tpm tpm0: [Hardware Error]: Adjusting reported timeouts: A 10000->750000us B 10000->2000000us C 10000->750000us D 10000->750000us
Keep track and prevent tpm_get_timeouts from running a second time, and
clarify the purpose of the call in tpm_tis_core to only be connected to
irq testing.
Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
If the TPM we're connecting to uses a static burst count, it will report
a burst count of zero throughout the response read. However, get_burstcount
assumes that a response of zero indicates that the TPM is not ready to
receive more data. In this case, it returns a negative error code, which
is passed on to tpm_tis_{write,read}_bytes as a u16, causing
them to read/write far too many bytes.
This patch checks for negative return codes and bails out from recv_data
and tpm_tis_send_data.
Cc: stable@vger.kernel.org
Fixes: 1107d065fd (tpm_tis: Introduce intermediate layer for TPM access)
Signed-off-by: Josh Zimmerman <joshz@google.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Place kdoc just above tpm_pcr_extend so it can be parsed correctly.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Use cpu_to_b32 at the time it is needed in enum tpm_capabilities and
enum tpm_sub_capabilities in order to be consistent with the other
enums in drivats/char/tpm/tpm.h.
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Call tpm_getcap() from tpm_get_timeouts() to eliminate redundant
code. Return all errors to the caller rather than swallowing them
(e.g. when tpm_transmit_cmd() returns nonzero).
Signed-off-by: Ed Swierk <eswierk@skyportsystems.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
In some weird cases it might be possible that the TPM does not set
STS.VALID within the given timeout time (or ever) but sets STS.EXPECT
(STS=0x0C) In this case the driver gets stuck in the while loop of
tpm_tis_send_data and loops endlessly.
Checking the return value of wait_for_tpm_stat fixes this and the driver
bails out correctly. While at it fixing all other users since if the
TPM does not manage to set STS.VALID within the reasonable timeframe
something is definitely wrong and the driver should react correctly.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Utilize runtime_pm for driving tpm crb idle states.
The framework calls cmd_ready from the pm_runtime_resume handler
and go idle from the pm_runtime_suspend handler.
The TPM framework should wake the device before transmit and receive.
In case the runtime_pm framework is not compiled in or enabled, the device
will be in the permanent ready state.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
This is preparation step for implementing tpm crb
runtime pm. We need to have tpm chip allocated
and populated before we access the runtime handlers.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
There is a HW bug in Skylake, and Broxton PCH Intel PTT device, where
most of the registers in the control area except START, REQUEST, CANCEL,
and LOC_CTRL lost retention when the device is in the idle state. Hence
we need to bring the device to ready state before accessing the other
registers. The fix brings device to ready state before trying to read
command and response buffer addresses in order to remap the for access.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinn@linux.intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinn@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
The register TPM_CRB_CTRL_REQ_x contains bits goIdle and cmdReady for
SW to indicate that the device can enter or should exit the idle state.
The legacy ACPI-start (SMI + DMA) based devices do not support these
bits and the idle state management is not exposed to the host SW.
Thus, this functionality only is enabled only for a CRB start (MMIO)
based devices.
Based on Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
original patch:
'tpm_crb: implement power tpm crb power management'
To keep the implementation local to the hw we don't use wait_for_tpm_stat
for polling the TPM_CRB_CTRL_REQ.
[jarkko.sakkinen@linux.intel.com: removed cmdReady debug trace on a
success case due the heavy amount of log traffic it causes.]
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Convert isec->lock from a mutex into a spinlock. Instead of holding
the lock while sleeping in inode_doinit_with_dentry, set
isec->initialized to LABEL_PENDING and release the lock. Then, when
the sid has been determined, re-acquire the lock. If isec->initialized
is still set to LABEL_PENDING, set isec->sid; otherwise, the sid has
been set by another task (LABEL_INITIALIZED) or invalidated
(LABEL_INVALID) in the meantime.
This fixes a deadlock on gfs2 where
* one task is in inode_doinit_with_dentry -> gfs2_getxattr, holds
isec->lock, and tries to acquire the inode's glock, and
* another task is in do_xmote -> inode_go_inval ->
selinux_inode_invalidate_secctx, holds the inode's glock, and
tries to acquire isec->lock.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
[PM: minor tweaks to keep checkpatch.pl happy]
Signed-off-by: Paul Moore <paul@paul-moore.com>
When a new capability is defined, SELinux needs to be updated.
Trigger a build error if a new capability is defined without
corresponding update to security/selinux/include/classmap.h's
COMMON_CAP2_PERMS. This is similar to BUILD_BUG_ON() guards
in the SELinux nlmsgtab code to ensure that SELinux tracks
new netlink message types as needed.
Note that there is already a similar build guard in
security/selinux/hooks.c to detect when more than 64
capabilities are defined, since that will require adding
a third capability class to SELinux.
A nicer way to do this would be to extend scripts/selinux/genheaders
or a similar tool to auto-generate the necessary definitions and code
for SELinux capability checking from include/uapi/linux/capability.h.
AppArmor does something similar in its Makefile, although it only
needs to generate a single table of names. That is left as future
work.
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
[PM: reformat the description to keep checkpatch.pl happy]
Signed-off-by: Paul Moore <paul@paul-moore.com>
At present, one can write any signed integer value to
/sys/fs/selinux/enforce and it will be stored,
e.g. echo -1 > /sys/fs/selinux/enforce or echo 2 >
/sys/fs/selinux/enforce. This makes no real difference
to the kernel, since it only ever cares if it is zero or non-zero,
but some userspace code compares it with 1 to decide if SELinux
is enforcing, and this could confuse it. Only a process that is
already root and is allowed the setenforce permission in SELinux
policy can write to /sys/fs/selinux/enforce, so this is not considered
to be a security issue, but it should be fixed.
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Paul Moore <paul@paul-moore.com>
The invalid Smack label ("") and the Huh ("?") Smack label
serve the same purpose and having both is unnecessary.
While pulling out the invalid label it became clear that
the use of smack_from_secid() was inconsistent, so that
is repaired. The setting of inode labels to the invalid
label could never happen in a functional system, has
never been observed in the wild and is not what you'd
really want for a failure behavior in any case. That is
removed.
Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Since smack_parse_opts_str() is calling match_strdup() which uses
GFP_KERNEL, it is safe to use GFP_KERNEL from kcalloc() which is
called by smack_parse_opts_str().
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Now that isec->initialized == LABEL_INITIALIZED implies that
isec->sclass is valid, skip such inodes immediately in
inode_doinit_with_dentry.
For the remaining inodes, initialize isec->sclass at the beginning of
inode_doinit_with_dentry to simplify the code.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Pass the file mode of the proc inode to be created to
proc_pid_make_inode. In proc_pid_make_inode, initialize inode->i_mode
before calling security_task_to_inode. This allows selinux to set
isec->sclass right away without introducing "half-initialized" inode
security structs.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Fix the comment for function __inode_security_revalidate, which returns
an integer.
Use the LABEL_* constants consistently for isec->initialized.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Since selinux_parse_opts_str() is calling match_strdup() which uses
GFP_KERNEL, it is safe to use GFP_KERNEL from kcalloc() which is
called by selinux_parse_opts_str().
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Paul Moore <paul@paul-moore.com>
In general the handling of IMA/EVM xattrs is good, but I found
a few locations where either the xattr size or the value of the
type field in the xattr are not checked. Add a few simple checks
to these locations to prevent malformed or malicious xattrs from
causing problems.
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Userspace applications have been modified to write security xattrs,
but they are not context aware. In the case of security.ima, the
security xattr can be either a file hash or a file signature.
Permitting writing one, but not the other requires the application to
be context aware.
In addition, userspace applications might write files to a staging
area, which might not be in policy, and then change some file metadata
(eg. owner) making it in policy. As a result, these files are not
labeled properly.
This reverts commit c68ed80c97, which
prevents writing file hashes as security.ima xattrs.
Requested-by: Patrick Ohly <patrick.ohly@intel.com>
Cc: Dmitry Kasatkin <dmitry.kasatkin@gmail.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
When the "policy" securityfs file is opened for read, it is opened as a
sequential file. However, when it is eventually released, there is no
cleanup for the sequential file, therefore some memory is leaked.
This patch adds a call to seq_release() in ima_release_policy() to clean up
the memory when the file is opened for read.
Fixes: 80eae209d6 IMA: allow reading back the current policy
Reported-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Eric Richter <erichte@linux.vnet.ibm.com>
Tested-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
wait for next week.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Paolo Bonzini:
"ARM fixes. There are a couple pending x86 patches but they'll have to
wait for next week"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: arm/arm64: vgic: Kick VCPUs when queueing already pending IRQs
KVM: arm/arm64: vgic: Prevent access to invalid SPIs
arm/arm64: KVM: Perform local TLB invalidation when multiplexing vcpus on a single CPU
Merge media fixes from Mauro Carvalho Chehab:
"This contains two patches fixing problems with my patch series meant
to make USB drivers to work again after the DMA on stack changes.
The last patch on this series is actually not related to DMA on stack.
It solves a longstanding bug affecting module unload, causing
module_put() to be called twice. It was reported by the user who
reported and tested the issues with the gp8psk driver with the DMA
fixup patches. As we're late at -rc cycle, maybe you prefer to not
apply it right now. If this is the case, I'll add to the pile of
patches for 4.10.
Exceptionally this time, I'm sending the patches via e-mail, because
I'm on another trip, and won't be able to use the usual procedure
until Monday. Also, it is only three patches, and you followed already
the discussions about the first one"
* emailed patches from Mauro Carvalho Chehab <mchehab@osg.samsung.com>:
gp8psk: Fix DVB frontend attach
gp8psk: fix gp8psk_usb_in_op() logic
dvb-usb: move data_mutex to struct dvb_usb_device
Here are three small driver fixes for some reported issues for 4.9-rc5.
One for the hyper-v subsystem, fixing up a naming issue that showed up
in 4.9-rc1, one mei driver fix, and one fix for parallel ports,
resolving a reported regression.
All have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc fixes from Greg KH:
"Here are three small driver fixes for some reported issues for
4.9-rc5.
One for the hyper-v subsystem, fixing up a naming issue that showed up
in 4.9-rc1, one mei driver fix, and one fix for parallel ports,
resolving a reported regression.
All have been in linux-next with no reported issues"
* tag 'char-misc-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
ppdev: fix double-free of pp->pdev->name
vmbus: make sysfs names consistent with PCI
mei: bus: fix received data size check in NFC fixup
Here are two driver core fixes for 4.9-rc5.
The first resolves an issue with some drivers not liking to be unbound
and bound again (if CONFIG_DEBUG_TEST_DRIVER_REMOVE is enabled), which
solves some reported problems with graphics and storage drivers. The
other resolves a smatch error with the 4.9-rc1 driver core changes
around this feature.
Both have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fixes from Greg KH:
"Here are two driver core fixes for 4.9-rc5.
The first resolves an issue with some drivers not liking to be unbound
and bound again (if CONFIG_DEBUG_TEST_DRIVER_REMOVE is enabled), which
solves some reported problems with graphics and storage drivers. The
other resolves a smatch error with the 4.9-rc1 driver core changes
around this feature.
Both have been in linux-next with no reported issues"
* tag 'driver-core-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
driver core: fix smatch warning on dev->bus check
driver core: skip removal test for non-removable drivers
Here are a few small staging and iio driver fixes for reported issues.
The last one was cherry-picked from my -next branch to resolve a build
warning that Arnd fixed, in his quest to be able to turn
-Wmaybe-uninitialized back on again. That patch, and all of the others,
have been in linux-next for a while with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging/IIO fixes from Grek KH:
"Here are a few small staging and iio driver fixes for reported issues.
The last one was cherry-picked from my -next branch to resolve a build
warning that Arnd fixed, in his quest to be able to turn
-Wmaybe-uninitialized back on again. That patch, and all of the
others, have been in linux-next for a while with no reported issues"
* tag 'staging-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
iio: maxim_thermocouple: detect invalid storage size in read()
staging: nvec: remove managed resource from PS2 driver
Revert "staging: nvec: ps2: change serio type to passthrough"
drivers: staging: nvec: remove bogus reset command for PS/2 interface
staging: greybus: arche-platform: fix device reference leak
staging: comedi: ni_tio: fix buggy ni_tio_clock_period_ps() return value
staging: sm750fb: Fix bugs introduced by early commits
iio: hid-sensors: Increase the precision of scale to fix wrong reading interpretation.
iio: orientation: hid-sensor-rotation: Add PM function (fix non working driver)
iio: st_sensors: fix scale configuration for h3lis331dl
staging: iio: ad5933: avoid uninitialized variable in error case
Here are a number of small USB and PHY driver fixes for 4.9-rc5
Nothing major, just small fixes for reported issues, all of these have
been in linux-next for a while with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / PHY fixes from Greg KH:
"Here are a number of small USB and PHY driver fixes for 4.9-rc5
Nothing major, just small fixes for reported issues, all of these have
been in linux-next for a while with no reported issues"
* tag 'usb-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
USB: cdc-acm: fix TIOCMIWAIT
cdc-acm: fix uninitialized variable
drivers/usb: Skip auto handoff for TI and RENESAS usb controllers
usb: musb: remove duplicated actions
usb: musb: da8xx: Don't print phy error on -EPROBE_DEFER
phy: sun4i: check PMU presence when poking unknown bit of pmu
phy-rockchip-pcie: remove deassert of phy_rst from exit callback
phy: da8xx-usb: rename the ohci device to ohci-da8xx
phy: Add reset callback for not generic phy
uwb: fix device reference leaks
usb: gadget: u_ether: remove interrupt throttling
usb: dwc3: st: add missing <linux/pinctrl/consumer.h> include
usb: dwc3: Fix error handling for core init
Pull more block fixes from Jens Axboe:
"Since I mistakenly left out the lightnvm regression fix yesterday and
the aoeblk seems adequately tested at this point, might as well send
out another pull to make -rc5"
* 'for-linus' of git://git.kernel.dk/linux-block:
aoe: fix crash in page count manipulation
lightnvm: invalid offset calculation for lba_shift
The megaraid_sas patch in here fixes a major regression in the last
fix set that made all megaraid_sas cards unusable. It turns out
no-one had actually tested such an "obvious" fix, sigh. The fix for
the fix has been tested ...
The next most serious is the vmw_pvscsi abort problem which basically
means that aborts don't work on the vmware paravirt devices and error
handling always escalates to reset.
The rest are an assortment of missed reference counting in certain
paths and corner case bugs that show up on some architectures.
Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"The megaraid_sas patch in here fixes a major regression in the last
fix set that made all megaraid_sas cards unusable. It turns out no-one
had actually tested such an "obvious" fix, sigh. The fix for the fix
has been tested ...
The next most serious is the vmw_pvscsi abort problem which basically
means that aborts don't work on the vmware paravirt devices and error
handling always escalates to reset.
The rest are an assortment of missed reference counting in certain
paths and corner case bugs that show up on some architectures"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: megaraid_sas: fix macro MEGASAS_IS_LOGICAL to avoid regression
scsi: qla2xxx: fix invalid DMA access after command aborts in PCI device remove
scsi: qla2xxx: do not queue commands when unloading
scsi: libcxgbi: fix incorrect DDP resource cleanup
scsi: qla2xxx: Fix scsi scan hang triggered if adapter fails during init
scsi: scsi_dh_alua: Fix a reference counting bug
scsi: vmw_pvscsi: return SUCCESS for successful command aborts
scsi: mpt3sas: Fix for block device of raid exists even after deleting raid disk
scsi: scsi_dh_alua: fix missing kref_put() in alua_rtpg_work()
anything in the core framework here, just driver fixes. There's a boot fix for
Samsung devices and a safety measure for qoriq to prevent CPUs from running too
fast. There's also a fix for i.MX6Q to properly handle audio clock rates. We
also have some "that's obviously wrong" fixes like bad NULL pointer checks in
the MPP driver and a poor usage of __pa in the xgene clk driver that are fixed
here.
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"The typical collection of minor bug fixes in clk drivers. We don't
have anything in the core framework here, just driver fixes.
There's a boot fix for Samsung devices and a safety measure for qoriq
to prevent CPUs from running too fast. There's also a fix for i.MX6Q
to properly handle audio clock rates. We also have some "that's
obviously wrong" fixes like bad NULL pointer checks in the MPP driver
and a poor usage of __pa in the xgene clk driver that are fixed here"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: mmp: pxa910: fix return value check in pxa910_clk_init()
clk: mmp: pxa168: fix return value check in pxa168_clk_init()
clk: mmp: mmp2: fix return value check in mmp2_clk_init()
clk: qoriq: Don't allow CPU clocks higher than starting value
clk: imx: fix integer overflow in AV PLL round rate
clk: xgene: Don't call __pa on ioremaped address
clk/samsung: Use CLK_OF_DECLARE_DRIVER initialization method for CLKOUT
clk: rockchip: don't return NULL when failing to register ddrclk branch
The DVB binding schema at the DVB core assumes that the frontend is a
separate driver. Faling to do that causes OOPS when the module is
removed, as it tries to do a symbol_put_addr on an internal symbol,
causing craches like:
WARNING: CPU: 1 PID: 28102 at kernel/module.c:1108 module_put+0x57/0x70
Modules linked in: dvb_usb_gp8psk(-) dvb_usb dvb_core nvidia_drm(PO) nvidia_modeset(PO) snd_hda_codec_hdmi snd_hda_intel snd_hda_codec snd_hwdep snd_hda_core snd_pcm snd_timer snd soundcore nvidia(PO) [last unloaded: rc_core]
CPU: 1 PID: 28102 Comm: rmmod Tainted: P WC O 4.8.4-build.1 #1
Hardware name: MSI MS-7309/MS-7309, BIOS V1.12 02/23/2009
Call Trace:
dump_stack+0x44/0x64
__warn+0xfa/0x120
module_put+0x57/0x70
module_put+0x57/0x70
warn_slowpath_null+0x23/0x30
module_put+0x57/0x70
gp8psk_fe_set_frontend+0x460/0x460 [dvb_usb_gp8psk]
symbol_put_addr+0x27/0x50
dvb_usb_adapter_frontend_exit+0x3a/0x70 [dvb_usb]
From Derek's tests:
"Attach bug is fixed, tuning works, module unloads without
crashing. Everything seems ok!"
Reported-by: Derek <user.vdr@gmail.com>
Tested-by: Derek <user.vdr@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit bc29131ecb10 ("[media] gp8psk: don't do DMA on stack") fixed the
usage of DMA on stack, but the memcpy was wrong for gp8psk_usb_in_op().
Fix it.
From Derek's email:
"Fix confirmed using 2 different Skywalker models with
HD mpeg4, SD mpeg2."
Suggested-by: Johannes Stezenbach <js@linuxtv.org>
Fixes: bc29131ecb10 ("[media] gp8psk: don't do DMA on stack")
Tested-by: Derek <user.vdr@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
As found by gcc -Wmaybe-uninitialized, having a storage_bytes value other
than 2 or 4 will result in undefined behavior:
drivers/iio/temperature/maxim_thermocouple.c: In function 'maxim_thermocouple_read':
drivers/iio/temperature/maxim_thermocouple.c:141:5: error: 'ret' may be used uninitialized in this function [-Werror=maybe-uninitialized]
This probably cannot happen, but returning -EINVAL here is appropriate
and makes gcc happy and the code more robust.
Fixes: 231147ee77 ("iio: maxim_thermocouple: Align 16 bit big endian value of raw reads")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
(cherry picked from commit 32cb7d27e6)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
aoeblk contains some mysterious code, that wants to elevate the bio
vec page counts while it's under IO. That is not needed, it's
fragile, and it's causing kernel oopses for some.
Reported-by: Tested-by: Don Koch <kochd@us.ibm.com>
Tested-by: Tested-by: Don Koch <kochd@us.ibm.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
The ns->lba_shift assumes its value to be the logarithmic of the
LA size. A previous patch duplicated the lba_shift calculation into
lightnvm. It prematurely also subtracted a 512byte shift, which commonly
is applied per-command. The 512byte shift being subtracted twice led to
data loss when restoring the logical to physical mapping table from
device and when issuing I/O commands using rrpc.
Fix offset by removing the 512byte shift subtraction when calculating
lba_shift.
Fixes: b0b4e09c1a "lightnvm: control life of nvm_dev in driver"
Reported-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
