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2016-01-22Merge tag 'sound-fix-4.5-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "Here are lots of small fixes that have been collected since the previous pull. This time, not only trivial ones but fixes for some serious bugs are included: - Fix for CPU lockups by snd-hrtimer accesses - Fix for unsafe disconnection handling in ALSA timer code - Fix for Oops due to race at HD-audio module removal - Fixes for possible memory corruption via 32bit PCM and sequencer compat ioctls - Fix for regression in HD-audio generic model handling - Suppress kernel warnings for invalid TLV ioctls that may flood up - Fix the missing SSC clock handling for at73c213 - A pin fixup for ASUS N550JX" * tag 'sound-fix-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: timer: Introduce disconnect op to snd_timer_instance ALSA: timer: Handle disconnection more safely ALSA: hda - Flush the pending probe work at remove ALSA: hda - Fix missing module loading with model=generic option ALSA: hda - Degrade i915 binding failure message ALSA: at73c213: manage SSC clock ALSA: control: Avoid kernel warnings from tlv ioctl with numid 0 ALSA: seq: Fix snd_seq_call_port_info_ioctl in compat mode ALSA: pcm: Fix snd_pcm_hw_params struct copy in compat mode ALSA: hrtimer: Fix stall by hrtimer_cancel() ALSA: hda - Fix bass pin fixup for ASUS N550JX
2016-01-21ALSA: timer: Introduce disconnect op to snd_timer_instanceTakashi Iwai
Instead of the previous ugly hack, introduce a new op, disconnect, to snd_timer_instance object for handling the wake up of pending tasks more cleanly. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=109431 Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-01-21ALSA: timer: Handle disconnection more safelyTakashi Iwai
Currently ALSA timer device doesn't take the disconnection into account very well; it merely unlinks the timer device at disconnection callback but does nothing else. Because of this, when an application accessing the timer device is disconnected, it may release the resource before actually closed. In most cases, it results in a warning message indicating a leftover timer instance like: ALSA: timer xxxx is busy? But basically this is an open race. This patch tries to address it. The strategy is like other ALSA devices: namely, - Manage card's refcount at each open/close - Wake up the pending tasks at disconnection - Check the shutdown flag appropriately at each possible call Note that this patch has one ugly hack to handle the wakeup of pending tasks. It'd be cleaner to introduce a new disconnect op to snd_timer_instance ops. But since it would lead to internal ABI breakage and it eventually increase my own work when backporting to stable kernels, I took a different path to implement locally in timer.c. A cleanup patch will follow at next for 4.5 kernel. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=109431 Cc: <stable@vger.kernel.org> # v3.15+ Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-01-21Merge tag 'armsoc-multiplatform' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC multiplatform code updates from Arnd Bergmann: "This branch is the culmination of 5 years of effort to bring the ARMv6 and ARMv7 platforms together such that they can all be enabled and boot the same kernel. It has been a tremendous amount of cleanup and refactoring by a huge number of people, and creation of several new (and major) subsystems to better abstract out all the platform details in an appropriate manner. The bulk of this branch is a large patchset from Arnd that brings several of the more minor and older platforms we have closer to multiplatform support. Among these are MMP, S3C64xx, Orion5x, mv78xx0 and realview Much of this is moving around header files from old mach directories, but there are also some cleanup patches of debug_ll (lowlevel debug per-platform options) and other parts. Linus Walleij also has some patchs to clean up the older ARM Realview platforms by finally introducing DT support, and Rob Herring has some for ARM Versatile which is now DT-only. Both of these platforms are now multiplatform. Finally, a couple of patches from Russell for Dove PMU, and a fix from Valentin Rothberg for Exynos ADC, which were rebased on top of the series to avoid conflicts" * tag 'armsoc-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (75 commits) ARM: realview: don't select SMP_ON_UP for UP builds ARM: s3c: simplify s3c_irqwake_{e,}intallow definition ARM: s3c64xx: fix pm-debug compilation iio: exynos-adc: fix irqf_oneshot.cocci warnings ARM: realview: build realview-dt SMP support only when used ARM: realview: select apropriate targets ARM: realview: clean up header files ARM: realview: make all header files local ARM: no longer make CPU targets visible separately ARM: integrator: use explicit core module options ARM: realview: enable multiplatform ARM: make default platform work for NOMMU ARM: debug-ll: move DEBUG_LL_UART_EFM32 to correct Kconfig location ARM: defconfig: use correct debug_ll settings ARM: versatile: convert to multi-platform ARM: versatile: merge mach code into a single file ARM: versatile: switch to DT only booting and remove legacy code ARM: versatile: add DT based PCI detection ARM: pxa: mark ezx structures as __maybe_unused ARM: pxa: mark raumfeld init functions as __maybe_unused ...
2016-01-20ALSA: hda - Flush the pending probe work at removeTakashi Iwai
As HD-audio driver does deferred probe internally via workqueue, the driver might go into the mixed state doing both probe and remove when the module gets unloaded during the probe work. This eventually triggers an Oops, unsurprisingly. For avoiding this race, we just need to flush the pending probe work explicitly before actually starting the resource release. Bugzilla: https://bugzilla.opensuse.org/show_bug.cgi?id=960710 Cc: <stable@vger.kernel.org> # v3.17+ Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-01-20ALSA: hda - Fix missing module loading with model=generic optionTakashi Iwai
When the generic codec driver is specified via model option or such, the hda driver doesn't try to load the generic driver module but still loads the codec-specific driver, and this ends up with the binding failure. This patch fixes it by moving the generic module request in the common helper code. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=111021 Cc: <stable@vger.kernel.org> # v4.4+ Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-01-20ALSA: hda - Degrade i915 binding failure messageTakashi Iwai
Currently HD-audio driver on Intel Skylake or Broxteon gives an error message when binding with i915 audio component fails. However, this isn't any serious error on a system without Intel graphics. Indeed there are such systems, where a third-party codec (e.g. Creative) is put on the mobo while using other discrete GPU (e.g. Nvidia). Printing a kernel "error" message is overreaction in such a case. This patch downgrades the print level for that message. For systems that mandate the i915 binding (e.g. Haswell or Broadwell HDMI/DP), another kernel error message is shown in addition to make clear what went wrong. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=111021 Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-01-20ALSA: at73c213: manage SSC clockMans Rullgard
Since commit 49af54ff0fc7 ("misc: atmel-ssc: prepare clock only when request") the SSC driver expects clients to manage the SSC clock. This updates the at73c213 driver to enable the SSC clock whenever it is needed. Signed-off-by: Mans Rullgard <mans@mansr.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-01-18ALSA: control: Avoid kernel warnings from tlv ioctl with numid 0Takashi Iwai
When a TLV ioctl with numid zero is handled, the driver may spew a kernel warning with a stack trace at each call. The check was intended obviously only for a kernel driver, but not for a user interaction. Let's fix it. This was spotted by syzkaller fuzzer. Reported-by: Dmitry Vyukov <dvyukov@google.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-01-18ALSA: seq: Fix snd_seq_call_port_info_ioctl in compat modeNicolas Boichat
This reverts one hunk of commit ef44a1ec6eee ("ALSA: sound/core: use memdup_user()"), which replaced a number of kmalloc followed by memcpy with memdup calls. In this case, we are copying from a struct snd_seq_port_info32 to a struct snd_seq_port_info, but the latter is 4 bytes longer than the 32-bit version, so we need to separate kmalloc and copy calls. Fixes: ef44a1ec6eee ('ALSA: sound/core: use memdup_user()') Signed-off-by: Nicolas Boichat <drinkcat@chromium.org> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-01-18ALSA: pcm: Fix snd_pcm_hw_params struct copy in compat modeNicolas Boichat
This reverts one hunk of commit ef44a1ec6eee ("ALSA: sound/core: use memdup_user()"), which replaced a number of kmalloc followed by memcpy with memdup calls. In this case, we are copying from a struct snd_pcm_hw_params32 to a struct snd_pcm_hw_params, but the latter is 4 bytes longer than the 32-bit version, so we need to separate kmalloc and copy calls. This actually leads to an out-of-bounds memory access later on in sound/soc/soc-pcm.c:soc_pcm_hw_params() (detected using KASan). Fixes: ef44a1ec6eee ('ALSA: sound/core: use memdup_user()') Signed-off-by: Nicolas Boichat <drinkcat@chromium.org> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-01-18ALSA: hrtimer: Fix stall by hrtimer_cancel()Takashi Iwai
hrtimer_cancel() waits for the completion from the callback, thus it must not be called inside the callback itself. This was already a problem in the past with ALSA hrtimer driver, and the early commit [fcfdebe70759: ALSA: hrtimer - Fix lock-up] tried to address it. However, the previous fix is still insufficient: it may still cause a lockup when the ALSA timer instance reprograms itself in its callback. Then it invokes the start function even in snd_timer_interrupt() that is called in hrtimer callback itself, results in a CPU stall. This is no hypothetical problem but actually triggered by syzkaller fuzzer. This patch tries to fix the issue again. Now we call hrtimer_try_to_cancel() at both start and stop functions so that it won't fall into a deadlock, yet giving some chance to cancel the queue if the functions have been called outside the callback. The proper hrtimer_cancel() is called in anyway at closing, so this should be enough. Reported-and-tested-by: Dmitry Vyukov <dvyukov@google.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-01-18ALSA: hda - Fix bass pin fixup for ASUS N550JXTakashi Iwai
ASUS N550JX (PCI SSID 1043:13df) requires the same fixup for a bass speaker output pin as other N550 models. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=110001 Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-01-17Merge tag 'gpio-v4.5-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO updates from Linus Walleij: "Here is the bulk of GPIO changes for v4.5. Notably there are big refactorings mostly by myself, aimed at getting the gpio_chip into a shape that makes me believe I can proceed to preserve state for a proper userspace ABI (character device) that has already been proposed once, but resulted in the feedback that I need to go back and restructure stuff. So I've been restructuring stuff. On the way I ran into brokenness (return code from the get_value() callback) and had to fix it. Also, refactored generic GPIO to be simpler. Some of that is still waiting to trickle down from the subsystems all over the kernel that provide random gpio_chips, I've touched every single GPIO driver in the kernel now, oh man I didn't know I was responsible for so much... Apart from that we're churning along as usual. I took some effort to test and retest so it should merge nicely and we shook out a couple of bugs in -next. Infrastructural changes: - In struct gpio_chip, rename the .dev node to .parent to better reflect the fact that this is not the GPIO struct device abstraction. We will add that soon so this would be totallt confusing. - It was noted that the driver .get_value() callbacks was sometimes reporting negative -ERR values to the gpiolib core, expecting them to be propagated to consumer gpiod_get_value() and gpio_get_value() calls. This was not happening, so as there was a mess of drivers returning negative errors and some returning "anything else than zero" to indicate that a line was active. As some would have bit 31 set to indicate "line active" it clashed with negative error codes. This is fixed by the largeish series clamping values in all drivers with !!value to [0,1] and then augmenting the code to propagate error codes to consumers. (Includes some ACKed patches in other subsystems.) - Add a void *data pointer to struct gpio_chip. The container_of() design pattern is indeed very nice, but we want to reform the struct gpio_chip to be a non-volative, stateless business, and keep states internal to the gpiolib to be able to hold on to the state when adding a proper userspace ABI (character device) further down the road. To achieve this, drivers need a handle at the internal state that is not dependent on their struct gpio_chip() so we add gpiochip_add_data() and gpiochip_get_data() following the pattern of many other subsystems. All the "use gpiochip data pointer" patches transforms drivers to this scheme. - The Generic GPIO chip header has been merged into the general <linux/gpio/driver.h> header, and the custom header for that removed. Instead of having a separate mm_gpio_chip struct for these generic drivers, merge that into struct gpio_chip, simplifying the code and removing the need for separate and confusing includes. Misc improvements: - Stabilize the way GPIOs are looked up from the ACPI legacy specification. - Incremental driver features for PXA, PCA953X, Lantiq (patches from the OpenWRT community), RCAR, Zynq, PL061, 104-idi-48 New drivers: - Add a GPIO chip to the ALSA SoC AC97 driver. - Add a new Broadcom NSP SoC driver (this lands in the pinctrl dir, but the branch is merged here too to account for infrastructural changes). - The sx150x driver now supports the sx1502" * tag 'gpio-v4.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (220 commits) gpio: generic: make bgpio_pdata always visible gpiolib: fix chip order in gpio list gpio: mpc8xxx: Do not use gpiochip_get_data() in mpc8xxx_gpio_save_regs() gpio: mm-lantiq: Do not use gpiochip_get_data() in ltq_mm_save_regs() gpio: brcmstb: Allow building driver for BMIPS_GENERIC gpio: brcmstb: Set endian flags for big-endian MIPS gpio: moxart: fix build regression gpio: xilinx: Do not use gpiochip_get_data() in xgpio_save_regs() leds: pca9532: use gpiochip data pointer leds: tca6507: use gpiochip data pointer hid: cp2112: use gpiochip data pointer bcma: gpio: use gpiochip data pointer avr32: gpio: use gpiochip data pointer video: fbdev: via: use gpiochip data pointer gpio: pch: Optimize pch_gpio_get() Revert "pinctrl: lantiq: Implement gpio_chip.to_irq" pinctrl: nsp-gpio: use gpiochip data pointer pinctrl: vt8500-wmt: use gpiochip data pointer pinctrl: exynos5440: use gpiochip data pointer pinctrl: at91-pio4: use gpiochip data pointer ...
2016-01-17Merge tag 'sound-4.5-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound updates from Takashi Iwai: "We've had quite busy weeks in this cycle. Looking at ALSA core, the significant changes are a few fixes wrt timer and sequencer ioctls that have been revealed by fuzzer recently. Other than that, ASoC core got a few updates about DAI link handling, but these are rather straightforward refactoring. In drivers scene, ASoC received quite lots of new drivers in addition to bunch of updates for still ongoing Intel Skylake support and topology API. HD-audio gained a new HDMI/DP hotplug notification via component. FireWire got a pile of code refactoring/updates with SCS.1x driver integration. More highlights are shown below. [ NOTE: this contains also many commits for DRM. This is due to the pull of drm stable branch into sound tree, as the base of i915 audio component work for HD-audio. The highlights below don't contain these DRM changes, as these are supposed to be pulled via drm tree in anyway sooner or later. ] Core: - Handful fixes to harden ALSA timer and sequencer ioctls against races reported by syzkaller fuzzer - Irq description string can be unique to each card; only for HD-audio for now ASoC: - Conversion of the array of DAI links to a list for supporting dynamically adding and removing DAI links - Topology API enhancements to make everything more component based and being able to specify PCM links via topology - Some more fixes for the topology code, though it is still not final and ready for enabling in production; we really need to get to the point where that can be done - A pile of changes for Intel SkyLake drivers which hopefully deliver some useful initial functionality for systems with this chipset, though there is more work still to come - Lots of new features and cleanups for the Renesas drivers - ANC support for WM5110 - New drivers: Imagination Technologies IPs, Atmel class D speaker, Cirrus CS47L24 and WM1831, Dialog DA7128, Realtek RT5659 and RT56156, Rockchip RK3036, TI PC3168A, and AMD ACP - Rename PCM1792a driver to be generic pcm179x HD-Audio: - Use audio component for i915 HDMI/DP hotplug handling - On-demand binding with i915 driver - bdl_pos_adj parameter adjustment for Baytrail controllers - Enable power_save_node for CX20722; this shouldn't lead to regression, hopefully - Kabylake HDMI/DP codec support - Quirks for Lenovo E50-80, Dell Latitude E-series, and other Dell machines - A few code refactoring FireWire: - Lots of code cleanup and refactoring - Integrate the support of SCS.1x devices into snd-oxfw driver; snd-scs1x driver is obsoleted USB-audio: - Fix possible NULL dereference at disconnection - A regression fix for Native Instruments devices Misc: - A few code cleanups of fm801 driver" * tag 'sound-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (722 commits) ALSA: timer: Code cleanup ALSA: timer: Harden slave timer list handling ALSA: hda - Add fixup for Dell Latitidue E6540 ALSA: timer: Fix race among timer ioctls ALSA: hda - add codec support for Kabylake display audio codec ALSA: timer: Fix double unlink of active_list ALSA: usb-audio: Fix mixer ctl regression of Native Instrument devices ALSA: hda - fix the headset mic detection problem for a Dell laptop ALSA: hda - Fix white noise on Dell Latitude E5550 ALSA: hda_intel: add card number to irq description ALSA: seq: Fix race at timer setup and close ALSA: seq: Fix missing NULL check at remove_events ioctl ALSA: usb-audio: Avoid calling usb_autopm_put_interface() at disconnect ASoC: hdac_hdmi: remove unused hdac_hdmi_query_pin_connlist ASoC: AMD: Add missing include file ALSA: hda - Fixup inverted internal mic for Lenovo E50-80 ALSA: usb: Add native DSD support for Oppo HA-1 ASoC: Make aux_dev more like a generic component ASoC: bcm2835: cleanup includes by ordering them alphabetically ASoC: AMD: Manage ACP 2.x SRAM banks power ...
2016-01-15ALSA: timer: Code cleanupTakashi Iwai
This is a minor code cleanup without any functional changes: - Kill keep_flag argument from _snd_timer_stop(), as all callers pass only it false. - Remove redundant NULL check in _snd_timer_stop(). Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-01-15ALSA: timer: Harden slave timer list handlingTakashi Iwai
A slave timer instance might be still accessible in a racy way while operating the master instance as it lacks of locking. Since the master operation is mostly protected with timer->lock, we should cope with it while changing the slave instance, too. Also, some linked lists (active_list and ack_list) of slave instances aren't unlinked immediately at stopping or closing, and this may lead to unexpected accesses. This patch tries to address these issues. It adds spin lock of timer->lock (either from master or slave, which is equivalent) in a few places. For avoiding a deadlock, we ensure that the global slave_active_lock is always locked at first before each timer lock. Also, ack and active_list of slave instances are properly unlinked at snd_timer_stop() and snd_timer_close(). Last but not least, remove the superfluous call of _snd_timer_stop() at removing slave links. This is a noop, and calling it may confuse readers wrt locking. Further cleanup will follow in a later patch. Actually we've got reports of use-after-free by syzkaller fuzzer, and this hopefully fixes these issues. Reported-by: Dmitry Vyukov <dvyukov@google.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-01-15ALSA: hda - Add fixup for Dell Latitidue E6540Takashi Iwai
Another Dell model, another fixup entry: Latitude E6540 needs the same fixup as other Latitude E series as workaround for noise problems. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=104341 Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-01-15Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial tree updates from Jiri Kosina. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: floppy: make local variable non-static exynos: fixes an incorrect header guard dt-bindings: fixes some incorrect header guards cpufreq-dt: correct dead link in documentation cpufreq: ARM big LITTLE: correct dead link in documentation treewide: Fix typos in printk Documentation: filesystem: Fix typo in fs/eventfd.c fs/super.c: use && instead of & for warn_on condition Documentation: fix sysfs-ptp lib: scatterlist: fix Kconfig description
2016-01-14ALSA: timer: Fix race among timer ioctlsTakashi Iwai
ALSA timer ioctls have an open race and this may lead to a use-after-free of timer instance object. A simplistic fix is to make each ioctl exclusive. We have already tread_sem for controlling the tread, and extend this as a global mutex to be applied to each ioctl. The downside is, of course, the worse concurrency. But these ioctls aren't to be parallel accessible, in anyway, so it should be fine to serialize there. Reported-by: Dmitry Vyukov <dvyukov@google.com> Tested-by: Dmitry Vyukov <dvyukov@google.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-01-14ALSA: hda - add codec support for Kabylake display audio codecLibin Yang
This patch adds codec ID (0x8086280b) for Kabylake display codec and apply the hsw fix-ups to Kabylake. Signed-off-by: Libin Yang <libin.yang@linux.intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-01-13ALSA: timer: Fix double unlink of active_listTakashi Iwai
ALSA timer instance object has a couple of linked lists and they are unlinked unconditionally at snd_timer_stop(). Meanwhile snd_timer_interrupt() unlinks it, but it calls list_del() which leaves the element list itself unchanged. This ends up with unlinking twice, and it was caught by syzkaller fuzzer. The fix is to use list_del_init() variant properly there, too. Reported-by: Dmitry Vyukov <dvyukov@google.com> Tested-by: Dmitry Vyukov <dvyukov@google.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-01-13Merge tag 'dmaengine-4.5-rc1' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds
Pull dmaengine updates from Vinod Koul: "This round we have few new features, new driver and updates to few drivers. The new features to dmaengine core are: - Synchronized transfer termination API to terminate the dmaengine transfers in synchronized and async fashion as required by users. We have its user now in ALSA dmaengine lib, img, at_xdma, axi_dmac drivers. - Universal API for channel request and start consolidation of request flows. It's user is ompa-dma driver. - Introduce reuse of descriptors and use in pxa_dma driver Add/Remove: - New STM32 DMA driver - Removal of unused R-Car HPB-DMAC driver Updates: - ti-dma-crossbar updates for supporting eDMA - tegra-apb pm updates - idma64 - mv_xor updates - ste_dma updates" * tag 'dmaengine-4.5-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (54 commits) dmaengine: mv_xor: add suspend/resume support dmaengine: mv_xor: de-duplicate mv_chan_set_mode*() dmaengine: mv_xor: remove mv_xor_chan->current_type field dmaengine: omap-dma: Add support for DMA filter mapping to slave devices dmaengine: edma: Add support for DMA filter mapping to slave devices dmaengine: core: Introduce new, universal API to request a channel dmaengine: core: Move and merge the code paths using private_candidate dmaengine: core: Skip mask matching when it is not provided to private_candidate dmaengine: mdc: Correct terminate_all handling dmaengine: edma: Add probe callback to edma_tptc_driver dmaengine: dw: fix potential memory leak in dw_dma_parse_dt() dmaengine: stm32-dma: Fix unchecked deference of chan->desc dmaengine: sh: Remove unused R-Car HPB-DMAC driver dmaengine: usb-dmac: Document SoC specific compatibility strings ste_dma40: Delete an unnecessary variable initialisation in d40_probe() ste_dma40: Delete another unnecessary check in d40_probe() ste_dma40: Delete an unnecessary check before the function call "kmem_cache_destroy" dmaengine: tegra-apb: Free interrupts before killing tasklets dmaengine: tegra-apb: Update driver to use GFP_NOWAIT dmaengine: tegra-apb: Only save channel state for those in use ...
2016-01-13ALSA: usb-audio: Fix mixer ctl regression of Native Instrument devicesTakashi Iwai
The commit [da6d276957ea: ALSA: usb-audio: Add resume support for Native Instruments controls] brought a regression where the Native Instrument audio devices don't get the correct value at update due to the missing shift at writing. This patch addresses it. Fixes: da6d276957ea ('ALSA: usb-audio: Add resume support for Native Instruments controls') Reported-and-tested-by: Owen Williams <owilliams@mixxx.org> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-01-13ALSA: hda - fix the headset mic detection problem for a Dell laptopHui Wang
The machine uses codec alc255, and the pin configuration value for pin 0x14 on this machine is 0x90171130 which is not in the pin quirk table yet. Cc: stable@vger.kernel.org BugLink: https://bugs.launchpad.net/bugs/1533461 Signed-off-by: Hui Wang <hui.wang@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-01-12ALSA: hda - Fix white noise on Dell Latitude E5550Takashi Iwai
Dell Latitude E5550 (1028:062c) has a white noise problem like other Latitude E models, and it gets fixed by the very same quirk as well. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=110591 Cc: <stable@vger.kernel.org> # v4.1+ Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-01-12ALSA: hda_intel: add card number to irq descriptionHeiner Kallweit
Currently the info in /proc/interrupts doesn't allow to figure out which interrupt belongs to which card (HDMI, PCH, ..). Therefore add card details to the interrupt description. With the patch the info in /proc/interrupts looks like this: PCI-MSI 442368-edge snd_hda_intel:card1 PCI-MSI 49152-edge snd_hda_intel:card0 NOTE: this patch adds the new irq_descr field snd_card struct that is filled automatically at a card object creation. This can be used generically for other drivers as well. The changes for others will follow later -- tiwai Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-01-12ALSA: seq: Fix race at timer setup and closeTakashi Iwai
ALSA sequencer code has an open race between the timer setup ioctl and the close of the client. This was triggered by syzkaller fuzzer, and a use-after-free was caught there as a result. This patch papers over it by adding a proper queue->timer_mutex lock around the timer-related calls in the relevant code path. Reported-by: Dmitry Vyukov <dvyukov@google.com> Tested-by: Dmitry Vyukov <dvyukov@google.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-01-12ALSA: seq: Fix missing NULL check at remove_events ioctlTakashi Iwai
snd_seq_ioctl_remove_events() calls snd_seq_fifo_clear() unconditionally even if there is no FIFO assigned, and this leads to an Oops due to NULL dereference. The fix is just to add a proper NULL check. Reported-by: Dmitry Vyukov <dvyukov@google.com> Tested-by: Dmitry Vyukov <dvyukov@google.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-01-12ALSA: usb-audio: Avoid calling usb_autopm_put_interface() at disconnectTakashi Iwai
ALSA PCM may still have a leftover instance after disconnection and it delays its release. The problem is that the PCM close code path of USB-audio driver has a call of snd_usb_autosuspend(). This involves with the call of usb_autopm_put_interface() and it may lead to a kernel Oops due to the NULL object like: BUG: unable to handle kernel NULL pointer dereference at 0000000000000190 IP: [<ffffffff815ae7ef>] usb_autopm_put_interface+0xf/0x30 PGD 0 Call Trace: [<ffffffff8173bd94>] snd_usb_autosuspend+0x14/0x20 [<ffffffff817461bc>] snd_usb_pcm_close.isra.14+0x5c/0x90 [<ffffffff8174621f>] snd_usb_playback_close+0xf/0x20 [<ffffffff816ef58a>] snd_pcm_release_substream.part.36+0x3a/0x90 [<ffffffff816ef6b3>] snd_pcm_release+0xa3/0xb0 [<ffffffff816debb0>] snd_disconnect_release+0xd0/0xe0 [<ffffffff8114d417>] __fput+0x97/0x1d0 [<ffffffff8114d589>] ____fput+0x9/0x10 [<ffffffff8109e452>] task_work_run+0x72/0x90 [<ffffffff81088510>] do_exit+0x280/0xa80 [<ffffffff8108996a>] do_group_exit+0x3a/0xa0 [<ffffffff8109261f>] get_signal+0x1df/0x540 [<ffffffff81040903>] do_signal+0x23/0x620 [<ffffffff8114c128>] ? do_readv_writev+0x128/0x200 [<ffffffff810012e1>] prepare_exit_to_usermode+0x91/0xd0 [<ffffffff810013ba>] syscall_return_slowpath+0x9a/0x120 [<ffffffff817587cd>] ? __sys_recvmsg+0x5d/0x70 [<ffffffff810d2765>] ? ktime_get_ts64+0x45/0xe0 [<ffffffff8115dea0>] ? SyS_poll+0x60/0xf0 [<ffffffff818d2327>] int_ret_from_sys_call+0x25/0x8f We have already a check of disconnection in snd_usb_autoresume(), but the check is missing its counterpart. The fix is just to put the same check in snd_usb_autosuspend(), too. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=109431 Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-01-11Merge tag 'asoc-v4.4-rc8' of ↵Takashi Iwai
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next ASoC: Last updates for v4.5 A bunch more updates for v4.5, mainly driver work: - More topology API enhancements from Mengdong Lin working towards making everything more component based and being able to specify PCM links via topology. - Large sets driver updates from Cirrus, Intel (mainly more Skylake support) and Renesas. - New driver for AMD ACP - Rename PCM1792a driver to be generic pcm179x
2016-01-11Merge remote-tracking branch 'asoc/topic/wm8960' into asoc-nextMark Brown
2016-01-11Merge remote-tracking branch 'asoc/topic/rt5651' into asoc-nextMark Brown
2016-01-11Merge remote-tracking branches 'asoc/topic/rcar' and 'asoc/topic/rockchip' ↵Mark Brown
into asoc-next
2016-01-11Merge remote-tracking branches 'asoc/topic/fsl-asrc' and ↵Mark Brown
'asoc/topic/fsl-ssi' into asoc-next
2016-01-11Merge remote-tracking branches 'asoc/topic/da7218' and 'asoc/topic/da7219' ↵Mark Brown
into asoc-next
2016-01-11Merge remote-tracking branches 'asoc/topic/bcm2835' and 'asoc/topic/cleanup' ↵Mark Brown
into asoc-next
2016-01-11Merge remote-tracking branches 'asoc/topic/adsp' and 'asoc/topic/amd' into ↵Mark Brown
asoc-next
2016-01-11Merge remote-tracking branch 'asoc/topic/rt5645' into asoc-nextMark Brown
2016-01-11Merge remote-tracking branch 'asoc/topic/pcm1792a' into asoc-nextMark Brown
2016-01-11Merge remote-tracking branch 'asoc/topic/pcm-list' into asoc-nextMark Brown
2016-01-11Merge remote-tracking branch 'asoc/topic/pcm' into asoc-nextMark Brown
2016-01-11Merge remote-tracking branch 'asoc/topic/arizona' into asoc-nextMark Brown
2016-01-11Merge tag 'asoc-v4.5' into asoc-nextMark Brown
ASoC: Updates for v4.5 This is quite a busy release on the driver front with a lot of new drivers being added but comparatively quiet on the core side with only one big change going in and that a fairly straightforward refactoring. - Conversion of the array of DAI links to a list by Mengdong Lin, supporting dynamically adding and removing DAI links. - Some more fixes for the topology code, though it is still not final and ready for enabling in production. We really need to get to the point where that can be done. - A pile of changes for Intel SkyLake drivers which hopefully deliver some useful initial functionality for systems with this chipset, though there is more work still to come. - New drivers for a number of Imagination Technologies IPs. - Lots of new features and cleanups for the Renesas drivers. - ANC support for WM5110. - New driver for Atmel class D speaker drivers. - New drivers for Cirrus CS47L24 and WM1831. - New driver for Dialog DA7128. - New drivers for Realtek RT5659 and RT56156. - New driver for Rockchip RK3036. - New driver for TI PC3168A # gpg: Signature made Wed 23 Dec 2015 00:42:40 GMT using RSA key ID 5D5487D0 # gpg: Good signature from "Mark Brown <broonie@sirena.org.uk>" # gpg: aka "Mark Brown <broonie@debian.org>" # gpg: aka "Mark Brown <broonie@kernel.org>" # gpg: aka "Mark Brown <broonie@tardis.ed.ac.uk>" # gpg: aka "Mark Brown <broonie@linaro.org>" # gpg: aka "Mark Brown <Mark.Brown@linaro.org>" # gpg: WARNING: This key is not certified with a trusted signature! # gpg: There is no indication that the signature belongs to the owner. # Primary key fingerprint: 3F25 68AA C269 98F9 E813 A1C5 C3F4 36CA 30F5 D8EB # Subkey fingerprint: ADE6 68AA 6757 18B5 9FE2 9FEA 24D6 8B72 5D54 87D0
2016-01-11Merge remote-tracking branch 'asoc/topic/intel' into asoc-nextMark Brown
2016-01-11Merge remote-tracking branch 'asoc/fix/compress' into asoc-linusMark Brown
2016-01-11Merge remote-tracking branch 'asoc/fix/arizona' into asoc-linusMark Brown
2016-01-11Merge branch 'patchwork' into v4l_for_linusMauro Carvalho Chehab
* patchwork: (204 commits) [media] rc: sunxi-cir: Initialize the spinlock properly [media] rtl2832: do not filter out slave TS null packets [media] rtl2832: print reg number on error case [media] rtl28xxu: return demod reg page from driver cache [media] coda: enable MPEG-2 ES decoding [media] coda: don't start streaming without queued buffers [media] coda: hook up vidioc_prepare_buf [media] coda: relax coda_jpeg_check_buffer for trailing bytes [media] coda: make to_coda_video_device static [media] s5p-mfc: remove volatile attribute from MFC register addresses [media] s5p-mfc: merge together s5p_mfc_hw_call and s5p_mfc_hw_call_void [media] s5p-mfc: use spinlock to protect MFC context [media] s5p-mfc: remove unnecessary callbacks [media] s5p-mfc: make queue cleanup code common [media] s5p-mfc: use one implementation of s5p_mfc_get_new_ctx [media] s5p-mfc: constify s5p_mfc_codec_ops structures [media] au8522: Avoid memory leak for device config data [media] ir-lirc-codec.c: don't leak lirc->drv-rbuf [media] uvcvideo: small cleanup in uvc_video_clock_update() [media] uvcvideo: Fix reading the current exposure value of UVC ...
2016-01-11ASoC: hdac_hdmi: remove unused hdac_hdmi_query_pin_connlistArnd Bergmann
A recent rework removed the only user of the hdac_hdmi_query_pin_connlist function, so we now get a warning when building the hdac_hdmi driver: hdac_hdmi.c:313:12: warning: 'hdac_hdmi_query_pin_connlist' defined but not used [-Wunused-function] This removes the function, which makes the file build cleanly again. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: 15b914476bf2 ("ASoC: hdac_hdmi: Use list to add pins and converters") Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-11ASoC: AMD: Add missing include fileGuenter Roeck
arm:allmodconfig, s390:allmodconfig, sparc64:allmodconfig, and probably other builds fail with sound/soc/amd/acp-pcm-dma.c:83:2: error: implicit declaration of function ‘readl’ sound/soc/amd/acp-pcm-dma.c:88:2: error: implicit declaration of function ‘writel’ Include linux/io.h explicitly to fix the problem. Fixes: 7c31335a03b6a ("ASoC: AMD: add AMD ASoC ACP 2.x DMA driver") Cc: Maruthi Srinivas Bayyavarapu <Maruthi.Bayyavarapu@amd.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Mark Brown <broonie@kernel.org>