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2014-02-05drm/ttm: Fix TTM object open regressionThomas Hellstrom
Commit drm/ttm: ttm object security fixes for render nodes introduced a regression where, if a TTM object was opened multiple times from the same open file, the caller would spin uninterruptibly in the kernel. Fix this. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
2014-02-05vmwgfx: Fix unitialized stack read in vmw_setup_otable_baseDave Jones
One of the error paths in vmw_setup_otable_base causes us to return with 'ret' having never been set to anything causing us to return whatever was on the stack. Found with Coverity Signed-off-by: Dave Jones <davej@fedoraproject.org> Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
2014-02-05ALSA: hda - Improve loopback path lookups for AD1983Takashi Iwai
AD1983 has flexible loopback routes and the generic parser would take wrong path confusingly instead of taking individual paths via NID 0x0c and 0x0d. For avoiding it, limit the connections at these widgets so that the parser can think more straightforwardly. This fixes the regression of the missing line-in loopback on Dell machine. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=70011 Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-02-05drm/vmwgfx: Reemit context bindings when necessary v2Thomas Hellstrom
When a context is first referenced in the command stream, make sure that all scrubbed (as a result of eviction) bindings are re-emitted. Also make sure that all bound resources are put on the resource validate list. This is needed for legacy emulation, since legacy user-space drivers will typically not re-emit shader bindings. It also removes the requirement for user-space drivers to re-emit render-target- and texture bindings. Makes suspend and hibernate now also work with legacy user-space drivers on guest-backed devices. v2: Don't rebind on legacy devices. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
2014-02-05drm/vmwgfx: Detect old user-space drivers and set up legacy emulation v2Thomas Hellstrom
GB aware mesa userspace drivers are detected by the fact that they are calling the vmw getparam ioctl querying DRM_VMW_PARAM_HW_CAPS to detect whether the device is Guest-backed object capable. For other drivers, lie about hardware version and send the 3D capabilities in a format they expect. v2: Use DRM_VMW_PARAM_MAX_MOB_MEMORY to detect gb awareness, Make sure we don't ovwerwrite bounce buffer or write past user-space buffer indicated size. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
2014-02-05drm/vmwgfx: Emulate legacy shaders on guest-backed devices v2Thomas Hellstrom
Command stream legacy shader creation and destruction is replaced by NOPs in the command stream, and instead guest-backed shaders are created and destroyed as part of the command validation process. v2: Removed some stray debug messages. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
2014-02-05drm/vmwgfx: Fix legacy surface reference size copybackThomas Hellstrom
Surfaces created using the guest-backed surface interface only keeps the base mip size, so only copy that if the legacy surface reference ioctl requests the size information. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
2014-02-05drm/vmwgfx: Fix SET_SHADER_CONST emulation on guest-backed devicesThomas Hellstrom
Emulate the SET_SHADER_CONST legacy command on guest-backed devices by issuing a SET_GB_SHADERCONSTS_INLINE command. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
2014-02-05drm/vmwgfx: Fix regression caused by "drm/ttm: make ttm reservation calls ↵Thomas Hellstrom
behave like reservation calls" The call to ttm_eu_backoff_reservation() as part of an error path would cause a lock imbalance if the reservation ticket was not initialized. This error is easily triggered from user-space by submitting a bogus command stream. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Jakob Bornecrantz <jakob@vmware.com> Cc: stable@vger.kernel.org Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com> Cc: Jerome Glisse <jglisse@redhat.com> Cc: Dave Airlie <airlied@redhat.com>
2014-02-05drm/vmwgfx: Don't commit staged bindings if execbuf failsThomas Hellstrom
If execbuf fails and binding commands are never sent to the device, don't commit the staged context bindings to the tracker. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
2014-02-05ALSA: hda - Fix missing VREF setup for Mac Pro 1,1Takashi Iwai
Mac Pro 1,1 with ALC889A codec needs the VREF setup on NID 0x18 to VREF50, in order to make the speaker working. The same fixup was already needed for MacBook Air 1,1, so we can reuse it. Reported-by: Nicolai Beuermann <mail@nico-beuermann.de> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-02-05ALSA: hda - Add missing mixer widget for AD1983Takashi Iwai
The mixer widget on AD1983 at NID 0x0e was missing in the commit [f2f8be43c5c9: ALSA: hda - Add aamix NID to AD codecs]. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=70011 Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-02-05ALSA: hda/realtek - Avoid invalid COEFs for ALC271XTakashi Iwai
We've seen often problems after suspend/resume on Acer Aspire One AO725 with ALC271X codec as reported in kernel bugzilla, and it turned out that some COEFs doesn't work and triggers the codec communication stall. Since these magic COEF setups are specific to ALC269VB for some PLL configurations, the machine works even without these manual adjustment. So, let's simply avoid applying them for ALC271X. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=52181 Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-02-05drm/mgag200: fix typo causing bw limits to be ignored on some chipsDave Airlie
mode->mdev otherwise the bw limits never kick in. Reported in RHEL testing. Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-02-05ACPI / battery: Fix incorrect sscanf() string in acpi_battery_init_alarm()Luis G.F
Fix incorrect sscanf() string in acpi_battery_init_alarm(). Change from %ld to %lu, because 'x' is unsigned long. Signed-off-by: Luis G.F <luisgf@luisgf.es> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-05ACPI / proc: remove unneeded NULL checkDan Carpenter
We already verified that "ldev" was non-NULL earlier and also we dereference again without checking a three lines later. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-05ACPI / utils: remove a pointless NULL checkDan Carpenter
"element" can't be NULL because it is the address of a struct member. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-05ACPI / video: Add HP EliteBook Revolve 810 to the blacklistMika Westerberg
On HP EliteBook Revolve 810 the ACPI backlight device doesn't work as expected. For example when resuming from system sleep, it seems to lose backlight settings. Forcing Intel driver fixes the problem so add this machine the ACPI video detect blacklist. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-04pinctrl: protect pinctrl_list addStanislaw Gruszka
We have few fedora bug reports about list corruption on pinctrl, for example: https://bugzilla.redhat.com/show_bug.cgi?id=1051918 Most likely corruption happen due lack of protection of pinctrl_list when adding new nodes to it. Patch corrects that. Fixes: 42fed7ba44e ("pinctrl: move subsystem mutex to pinctrl_dev struct") Cc: stable@vger.kernel.org Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-04intel_pstate: Take core C0 time into account for core busy calculationDirk Brandewie
Take non-idle time into account when calculating core busy time. This ensures that intel_pstate will notice a decrease in load. References: https://bugzilla.kernel.org/show_bug.cgi?id=66581 Cc: 3.10+ <stable@vger.kernel.org> # 3.10+ Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-04Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs Pull btrfs fixes from Chris Mason: "Filipe is fixing compile and boot problems with our crc32c rework, and Josef has disabled snapshot aware defrag for now. As the number of snapshots increases, we're hitting OOM. For the short term we're disabling things until a bigger fix is ready" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: Btrfs: use late_initcall instead of module_init Btrfs: use btrfs_crc32c everywhere instead of libcrc32c Btrfs: disable snapshot aware defrag for now
2014-02-04Merge tag 'nfs-for-3.14-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds
Pull NFS client bugfixes from Trond Myklebust: "Highlights: - Fix NFSv3 acl regressions - Fix NFSv4 memory corruption due to slot table abuse in nfs4_proc_open_confirm - nfs4_destroy_session must call rpc_destroy_waitqueue" * tag 'nfs-for-3.14-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: fs: get_acl() must be allowed to return EOPNOTSUPP NFSv3: Fix return value of nfs3_proc_setacls NFSv3: Remove unused function nfs3_proc_set_default_acl NFSv4.1: nfs4_destroy_session must call rpc_destroy_waitqueue NFSv4: Fix memory corruption in nfs4_proc_open_confirm nfs: fix setting of ACLs on file creation.
2014-02-04kbuild: don't enable DEBUG_INFO when building for COMPILE_TESTLinus Torvalds
It really isn't very interesting to have DEBUG_INFO when doing compile coverage stuff (you wouldn't want to run the result anyway, that's kind of the whole point of COMPILE_TEST), and it currently makes the build take longer and use much more disk space for "all{yes,mod}config". There's somewhat active discussion about this still, and we might end up with some new config option for things like this (Andi points out that the silly X86_DECODER_SELFTEST option also slows down the normal coverage tests hugely), but I'm starting the ball rolling with this simple one-liner. DEBUG_INFO isn't that noticeable if you have tons of memory and a good IO subsystem, but it hurts you a lot if you don't - for very little upside for the common use. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-02-04arm64: vdso: prevent ld from aligning PT_LOAD segments to 64kWill Deacon
Whilst the text segment for our VDSO is marked as PT_LOAD in the ELF headers, it is mapped by the kernel and not actually subject to demand-paging. ld doesn't realise this, and emits a p_align field of 64k (the maximum supported page size), which conflicts with the load address picked by the kernel on 4k systems, which will be 4k aligned. This causes GDB to fail with "Failed to read a valid object file image from memory" when attempting to load the VDSO. This patch passes the -n option to ld, which prevents it from aligning PT_LOAD segments to the maximum page size. Cc: <stable@vger.kernel.org> Reported-by: Kyle McMartin <kyle@redhat.com> Acked-by: Kyle McMartin <kyle@redhat.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2014-02-04Merge remote-tracking branches 'regulator/fix/ab3100' and ↵Mark Brown
'regulator/fix/s2mps11' into regulator-linus
2014-02-04Merge remote-tracking branch 'regulator/fix/core' into regulator-linusMark Brown
2014-02-04MIPS: Wire up sched_setattr/sched_getattr syscallsJames Hogan
Wire up for MIPS the new sched_setattr and sched_getattr system calls added in commit d50dde5a10f3 (sched: Add new scheduler syscalls to support an extended scheduling parameters ABI) merged in v3.14-rc1. Signed-off-by: James Hogan <james.hogan@imgtec.com> Reviewed-by: Markos Chandras <markos.chandras@imgtec.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/6502/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-02-04MIPS: Alchemy: Fix DB1100 GPIO registrationManuel Lauss
With CONFIG_GPIOLIB=y gpios need to be requested before they can be modified. Request the SD carddetect pins, and drop the SPI direction setup, as the driver does that for us anyway. This gets rid of a lot of WARN_ON()s triggered by GPIO core, and restores functionality of the touschreen controller. Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com> Cc: Linux-MIPS <linux-mips@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/6497/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-02-04[media] adv7842: Composite free-run platfrom-data fixMartin Bugge
Incorrectly setting of free-run for Composite. Copy/paste regression fix. Signed-off-by: Martin Bugge <marbugge@cisco.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-02-04[media] v4l2-dv-timings: fix GTF calculationMartin Bugge
Round off image width to nearest 8 (GTF_CELL_GRAN) A source sending a GTF (Generalized Timing Formula) format have no means of signalling image width. The assumed aspect ratio may result in an odd image width but according to the standard image width should be in multiple of 8. Cc: Mats Randgaard <matrandg@cisco.com> Signed-off-by: Martin Bugge <marbugge@cisco.com> Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-02-04[media] hdpvr: Fix memory leak in debugMasanari Iida
cppcheck reported memory leak in device_authorizatio() within hdpvr-core.c. When the debug option is specified and the code jump to "unlock:" label, print_buf was not freed. Confirm the module succesfully compiled without error. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-02-04[media] af9035: add ID [2040:f900] Hauppauge WinTV-MiniStick 2Antti Palosaari
Add USB ID [2040:f900] for Hauppauge WinTV-MiniStick 2. Device is build upon IT9135 chipset. Tested-by: Stefan Becker <schtefan@gmx.net> Signed-off-by: Antti Palosaari <crope@iki.fi> Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-02-04[media] mxl111sf: Fix compile when CONFIG_DVB_USB_MXL111SF is unsetDave Jones
Fix the following build error: drivers/media/usb/dvb-usb-v2/ mxl111sf-tuner.h:72:9: error: expected ‘;’, ‘,’ or ‘)’ before ‘struct’ struct mxl111sf_tuner_config *cfg) Signed-off-by: Dave Jones <davej@fedoraproject.org> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-02-04[media] mxl111sf: Fix unintentional garbage stack readDave Jones
mxl111sf_read_reg takes an address of a variable to write to as an argument. drivers/media/usb/dvb-usb-v2/mxl111sf-gpio.c:mxl111sf_config_pin_mux_modes passes several uninitialized stack variables to this routine, expecting them to be filled in. In the event that something unexpected happens when reading from the chip, we end up doing a pr_debug of the value passed in, revealing whatever garbage happened to be on the stack. Change the pr_debug to match what happens in the 'success' case, where we assign buf[1] to *data. Spotted with Coverity (Bugs 731910 through 731917) Signed-off-by: Dave Jones <davej@fedoraproject.org> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-02-04[media] cx24117: use a valid dev pointer for dev_err printoutAndi Shyti
Don't use '&state->priv->i2c->dev' reference to device because state is still 'NULL'. Use '&i2c->dev' instead. This bug has been reported by scan.coverity.com Signed-off-by: Andi Shyti <andi@etezian.org> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Cc: vger@stable.kernel.org Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-02-04[media] cx24117: remove dead code in always 'false' if statementAndi Shyti
At this point of the execution in the function cx24117_attach() demod cannot be '0'. In that case the function returns earlier with an error value ('NULL'). Remove the if statement. This error has been reported by scan.coverity.com Signed-off-by: Andi Shyti <andi@etezian.org> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-02-04[media] update Michael Krufky's email addressMichael Krufky
I am no longer available at the kernellabs.com or m1k.net email addresses. Update each instance of my email to my linuxtv.org account. Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-02-04[media] vb2: Check if there are buffers before streamonRicardo Ribalda
This patch adds a test preventing streamon() if there is no buffer ready. Without this patch, a user could call streamon() before preparing any buffer. This leads to a situation where if he calls close() before calling streamoff() the device is kept streaming. Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-02-04[media] Revert "[media] videobuf_vm_{open,close} race fixes"Hans Verkuil
This reverts commit a242f426108c284049a69710f871cc9f11b13e61. That commit actually caused deadlocks, rather then fixing them. If ext_lock is set to NULL (otherwise videobuf_queue_lock doesn't do anything), then you get this deadlock: The driver's mmap function calls videobuf_mmap_mapper which calls videobuf_queue_lock on q. videobuf_mmap_mapper calls __videobuf_mmap_mapper, __videobuf_mmap_mapper calls videobuf_vm_open and videobuf_vm_open calls videobuf_queue_lock on q (introduced by above patch): deadlocked. This affects drivers using dma-contig and dma-vmalloc. Only dma-sg is not affected since it doesn't call videobuf_vm_open from __videobuf_mmap_mapper. Most drivers these days have a non-NULL ext_lock. Those that still use NULL there are all fairly obscure drivers, which is why this hasn't been seen earlier. Since everything worked perfectly fine for many years I prefer to just revert this patch rather than trying to fix it. videobuf is quite fragile and I rather not touch it too much. Work is (slowly) progressing to move everything over to vb2 or at the very least use non-NULL ext_lock in videobuf. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Cc: <stable@vger.kernel.org> # for v3.11 and up Cc: Al Viro <viro@ZenIV.linux.org.uk> Reported-by: Pete Eberlein <pete@sensoray.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-02-04[media] go7007-loader: fix usb_dev leakAlexey Khoroshilov
There is usb_get_dev() in go7007_loader_probe(), but there is no usb_put_dev() anywhere. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-02-04[media] media: bt8xx: add missing put_device callLevente Kurusa
This is required so that we give up the last reference to the device. Remove the kfree() because the put_device() call will actually call release_sub_device which in turn kfrees the device. Signed-off-by: Levente Kurusa <levex@linux.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-02-04[media] exynos4-is: Compile in fimc-lite runtime PM callbacks conditionallySylwester Nawrocki
Enclose the runtime PM helpers in #ifdef CONFIG_PM_RUNTIME/#endif to avoid following compile warning when CONFIG_PM_RUNTIME is disabled: CC drivers/media/platform/exynos4-is/fimc-lite.o drivers/media/platform/exynos4-is/fimc-lite.c:1591:12: warning: ‘fimc_lite_runtime_resume’ defined but not used [-Wunused-function] drivers/media/platform/exynos4-is/fimc-lite.c:1599:12: warning: ‘fimc_lite_runtime_suspend’ defined but not used [-Wunused-function] Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-02-04[media] exynos4-is: Compile in fimc runtime PM callbacks conditionallySylwester Nawrocki
Enclose the runtime PM helpers in #ifdef CONFIG_PM_RUNTIME/#endif to avoid following compile warning when CONFIG_PM_RUNTIME is disabled: CC drivers/media/platform/exynos4-is/fimc-core.o drivers/media/platform/exynos4-is/fimc-core.c:1040:12: warning: ‘fimc_runtime_resume’ defined but not used drivers/media/platform/exynos4-is/fimc-core.c:1057:12: warning: ‘fimc_runtime_suspend’ defined but not used Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Reviewed-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-02-04[media] exynos4-is: Fix error paths in probe() for !pm_runtime_enabled()Sylwester Nawrocki
Ensure clk_disable() is called on error paths only when clk_enable() was previously called. This fixes following build warning: .../media-git/drivers/media/platform/exynos4-is/fimc-lite.c: In function 'fimc_lite_probe': .../media-git/drivers/media/platform/exynos4-is/fimc-lite.c:1583:1: warning: label 'err_sd' defined but not used [-Wunused-label] Reported-by: Hans Verkuil <hansverk@cisco.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-02-04[media] s5p-jpeg: Fix wrong NV12 format parametersJacek Anaszewski
NV12 format entries in the sjpeg_formats array had wrong colplanes, depth and v_align values. Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-02-04[media] s5k5baf: allow to handle arbitrary long i2c sequencesAndrzej Hajda
Using variable length array in s5k5baf_write_arr_seq caused an implicit assumption that i2c sequences should be short. The patch rewrites the function so it can handle sequences of any length and does not use variable length array. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-02-04ALSA: hda - Fix silent output on Toshiba Satellite L40Takashi Iwai
Toshiba Satellite L40 with AD1986A codec requires the EAPD of NID 0x1b to be constantly on, otherwise the output doesn't work. Unlike most of other AD1986A machines, EAPD is correctly implemented in HD-audio manner (that is, bit set = amp on), so we need to clear the inv_eapd flag in the fixup, too. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=67481 Cc: <stable@vger.kernel.org> [v3.11+] Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-02-03Merge branch 'acl_fixes' into linux-nextTrond Myklebust
2014-02-03fs: get_acl() must be allowed to return EOPNOTSUPPTrond Myklebust
posix_acl_xattr_get requires get_acl() to return EOPNOTSUPP if the filesystem cannot support acls. This is needed for NFS, which can't know whether or not the server supports acls until it tries to get/set one. This patch converts posix_acl_chmod and posix_acl_create to deal with EOPNOTSUPP return values from get_acl(). Reported-by: Russell King <linux@arm.linux.org.uk> Link: http://lkml.kernel.org/r/20140130140834.GW15937@n2100.arm.linux.org.uk Cc: Al Viro viro@zeniv.linux.org.uk> Reviewed-by: Christoph Hellwig <hch@lst.de> Tested-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-02-03ACPI / hotplug / PCI: Fix bridge removal race vs dock eventsRafael J. Wysocki
If a PCI bridge with an ACPIPHP context attached is removed via sysfs, the code path executed as a result is the following: pci_stop_and_remove_bus_device_locked pci_remove_bus pcibios_remove_bus acpi_pci_remove_bus acpiphp_remove_slots cleanup_bridge unregister_hotplug_dock_device (drops dock references to the bridge) put_bridge free_bridge acpiphp_put_context (for each child, under context lock) kfree (context) Now, if a dock event affecting one of the bridge's child devices occurs (roughly at the same time), it will lead to the following code path: acpi_dock_deferred_cb dock_notify handle_eject_request hot_remove_dock_devices dock_hotplug_event hotplug_event (dereferences context) That may lead to a kernel crash in hotplug_event() if it is executed after the last kfree() in the bridge removal code path. To prevent that from happening, add a wrapper around hotplug_event() called dock_event() and point the .handler pointer in acpiphp_dock_ops to it. Make that wrapper retrieve the device's ACPIPHP context using acpiphp_get_context() (instead of taking it from the data argument) under acpiphp_context_lock and check if the parent bridge's is_going_away flag is set. If that flag is set, it will return immediately and if it is not set it will grab a reference to the device's parent bridge before executing hotplug_event(). Then, in the above scenario, the reference to the parent bridge held by dock_event() will prevent free_bridge() from being executed for it until hotplug_event() returns. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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