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2016-01-27cpuidle: coupled: remove unused define cpuidle_coupled_lockAnders Roxell
This was found with the -RT patch enabled, but the fix should apply to non-RT also. Used multi_v7_defconfig+PREEMPT_RT_FULL=y and this caused a compilation warning without this fix: ../drivers/cpuidle/coupled.c:122:21: warning: 'cpuidle_coupled_lock' defined but not used [-Wunused-variable] Signed-off-by: Anders Roxell <anders.roxell@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-01-27PM / Domains: Fix typo in commentMoritz Fischer
Acked-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Moritz Fischer <moritz.fischer@ettus.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-01-27PM / Domains: Fix potential deadlock while adding/removing subdomainsUlf Hansson
We must preserve the same order of how we acquire and release the lock for genpd, as otherwise we may encounter deadlocks. The power on phase of a genpd starts by acquiring its lock. Then it walks the hierarchy of its parent domains to be able to power on these first, as per design of genpd. From a locking perspective this means the locks of the parents becomes acquired after the lock of the subdomain. Let's fix pm_genpd_add|remove_subdomain() to maintain the same order of acquiring/releasing the genpd lock as being applied in the power on/off sequence. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-01-27ASoC: simple-card: don't fail if sysclk setting is not supportedAaro Koskinen
Commit e22579713ae1 ("ASoC: simple card: set cpu-dai sysclk with mclk-fs") added sysclk / SND_SOC_CLOCK_OUT setting, that makes asoc_simple_card_hw_params fail if the operation is not supported, although the intention clearly was to ignore ENOTSUPP. Fix it. The patch fixes audio playback on Kirkwood / OpenRD client, where the following errors are seen: asoc-simple-card sound: ASoC: machine hw_params failed: -524 alsa-lib: /alsa-lib-1.0.28/src/pcm/pcm_hw.c:327:(snd_pcm_hw_hw_params) SNDRV_PCM_IOCTL_HW_PARAMS failed (-524): Unknown error 524 Fixes: e22579713ae1 ("ASoC: simple card: set cpu-dai sysclk with mclk-fs") Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-27Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds
Pull virtio tests and fixes from Michael Tsirkin: "This fixes existing tests broken by barrier rework, and adds some new tests. Plus, there's a fix for an old bug in virtio-pci" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: tools/virtio: add ringtest utilities sh: fix smp_store_mb for !SMP tools/virtio: use virt_xxx barriers virtio_pci: fix use after free on release
2016-01-27Revert "MIPS: bcm63xx: nvram: Remove unused bcm63xx_nvram_get_psi_size() ↵Ralf Baechle
function" This reverts commit 5bdb102b3f9785cb88467bc7c75fa0f5cacc8dc5. Brian Norris <computersforpeace@gmail.com> is reporting: Ralf, Please revert this and send it to Linus (or else, I can send it myself). This is causing build failures, because I didn't take the rest of Simon's series yet. drivers/mtd/bcm63xxpart.c: In function 'bcm63xx_parse_cfe_partitions': drivers/mtd/bcm63xxpart.c:93:2: error: implicit declaration of function 'bcm63xx_nvram_get_psi_size' [-Werror=implicit-function-declaration] Signed-off-by: Ralf Baechle <ralf@linux-mips.org> References: https://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20160126191607.GA111152%40google.com
2016-01-27Merge tag 'arm64-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Will Deacon: "The main thing here is to get us booting under qemu again after it turned out that not all of the PMU registers are emulated there, causing us to die early in boot. - Ensure we don't access PMU registers of the PMU is not implemented (fixes booting under QEMU) - Fix BUG_ON triggered during module loading with DEBUG_SET_MODULE_RONX - Ensure the kasan zero page is read-only - Hide __efistub_ symbol aliases from kallsyms, since they otherwise confuse the backtrace code - Ensure !PTE_WRITE kernel ptes are marked as read-only - defconfig updates based on requests and patches on the list - Other minor fixes (typos, build system)" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: mm: avoid calling apply_to_page_range on empty range arm64: defconfig: updates for 4.5 arm64: errata: Add -mpc-relative-literal-loads to build flags Eliminate the .eh_frame sections from the aarch64 vmlinux and kernel modules arm64: Fix an enum typo in mm/dump.c arm64: Honour !PTE_WRITE in set_pte_at() for kernel mappings arm64: kernel: fix architected PMU registers unconditional access arm64: kasan: ensure that the KASAN zero page is mapped read-only arm64: hide __efistub_ aliases from kallsyms
2016-01-27component: Detach components when deleting master structJon Medhurst (Tixy)
component_master_add_with_match calls find_components which, if any components already exist, it attaches to the master struct. However, if we later encounter an error the master struct is deleted, leaving components with a dangling pointer to it. If the error was a temporary one, e.g. for probe deferral, then when the master device is re-probed, it will fail to find the required components as they appear to already be attached to a master. Fix this by nulling components pointers to the master struct when it is deleted. This code is factored out into a separate function so it can be shared with component_master_del. Signed-off-by: Jon Medhurst <tixy@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-01-27Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull KVM fixes from Paolo Bonzini: "s390 and POWER bug fixes, plus enabling the KVM-VFIO interface on s390" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM doc: Fix KVM_SMI chapter number KVM: s390: fix memory overwrites when vx is disabled KVM: s390: Enable the KVM-VFIO device KVM: s390: fix guest fprs memory leak KVM: PPC: Fix ONE_REG AltiVec support KVM: PPC: Increase memslots to 512 KVM: PPC: Book3S PR: Remove unused variable 'vcpu_book3s' KVM: PPC: Fix emulation of H_SET_DABR/X on POWER8 KVM: PPC: Book3S HV: Handle unexpected traps in guest entry/exit code better
2016-01-27mailmap: redirect inactive address <ao2@amarulasolutions.com>Antonio Ospite
The email address <ao2@amarulasolutions.com> is not active anymore, use Antonio's personal email address <ao2@ao2.it> in case someone wants to get in touch for the code wrote for Amarula Solutions. Signed-off-by: Antonio Ospite <ao2@ao2.it> Cc: Michael Trimarchi <michael@amarulasolutions.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-01-27vfio/noiommu: Don't use iommu_present() to track fake groupsAlex Williamson
Using iommu_present() to determine whether an IOMMU group is real or fake has some problems. First, apparently Power systems don't register an IOMMU on the device bus, so the groups and containers get marked as noiommu and then won't bind to their actual IOMMU driver. Second, I expect we'll run into the same issue as we try to support vGPUs through vfio, since they're likely to emulate this behavior of creating an IOMMU group on a virtual device and then providing a vfio IOMMU backend tailored to the sort of isolation they provide, which won't necessarily be fully compatible with the IOMMU API. The solution here is to use the existing iommudata interface to IOMMU groups, which allows us to easily identify the fake groups we've created for noiommu purposes. The iommudata we set is purely arbitrary since we're only comparing the address, so we use the address of the noiommu switch itself. Reported-by: Alexey Kardashevskiy <aik@ozlabs.ru> Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru> Tested-by: Alexey Kardashevskiy <aik@ozlabs.ru> Tested-by: Anatoly Burakov <anatoly.burakov@intel.com> Tested-by: Santosh Shukla <sshukla@mvista.com> Fixes: 03a76b60f8ba ("vfio: Include No-IOMMU mode") Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2016-01-27ARM: wire up copy_file_range() syscallRussell King
Add the copy_file_range() syscall to ARM. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-01-27drm/radeon: fix DP audio support for APU with DCE4.1 display engineSlava Grigorev
Properly setup the DFS divider for DP audio for DCE4.1. Signed-off-by: Slava Grigorev <slava.grigorev@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2016-01-27drm/radeon: Add a common function for DFS handlingSlava Grigorev
Move encoding of DFS (digital frequency synthesizer) divider into a separate function and improve calculation precision. Signed-off-by: Slava Grigorev <slava.grigorev@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2016-01-27drm/radeon: cleaned up VCO output settings for DP audioSlava Grigorev
This is preparation for the fixes in the following patches. Signed-off-by: Slava Grigorev <slava.grigorev@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2016-01-27ARM: dts: am57xx: sbc-am57x: correct Eth PHY settingsDmitry Lifshitz
Update Eth PHY settings to make it possible to run both phys at 1Gbps. Signed-off-by: Dmitry Lifshitz <lifshitz@compulab.co.il> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-01-27ARM: dts: am57xx: cl-som-am57x: fix CPSW EMAC pinmuxDmitry Lifshitz
Fix CPSW EMAC pinmux Signed-off-by: Dmitry Lifshitz <lifshitz@compulab.co.il> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-01-27ARM: dts: am57xx: sbc-am57x: fix UART3 pinmuxDmitry Lifshitz
Fix UART3 pinmux. Signed-off-by: Dmitry Lifshitz <lifshitz@compulab.co.il> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-01-27ARM: dts: am57xx: cl-som-am57x: update SPI Flash frequencyDmitry Lifshitz
On-board SPI flash cat act at 48Mhz SPI bus frequency. Update the DT frequency property. Signed-off-by: Dmitry Lifshitz <lifshitz@compulab.co.il> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-01-27ARM: dts: am57xx: cl-som-am57x: set HOST mode for USB2Dmitry Lifshitz
Setup USB2 to act in "HOST" mode by default. Signed-off-by: Dmitry Lifshitz <lifshitz@compulab.co.il> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-01-27ARM: dts: am57xx: sbc-am57x: fix SB-SOM EEPROM I2C addressDmitry Lifshitz
Fix SB-SOM EEPROM I2C address Signed-off-by: Dmitry Lifshitz <lifshitz@compulab.co.il> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-01-27ARM: dts: LogicPD Torpedo: Revert Duplicative EntriesAdam Ford
Revert commit 7cd6ca770d1b ("ARM: dts: Change I2C2 and I2C3 to 400KHz for LogicPD Torpedo DM3730 devkit") It was already done and it is just a duplicate. Signed-off-by: Adam Ford <aford173@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-01-27ARM: dts: am437x: pixcir_tangoc: use correct flags for irq typesGrygorii Strashko
Now IRQs for Pixcir Tangoc touchscreen are defined using IRQ_TYPE_NONE in am437x-gp-evm.dts and am43x-epos-evm.dts wich do not correspond HW. Hence, update am437x-gp-evm.dts and am43x-epos-evm.dts files and use correct flag IRQ_TYPE_EDGE_FALLING for irq types. While here, remove duplicated irq declaration for pixcir_ts@5c node in am437x-gp-evm.dts. Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-01-27ARM: dts: am4372: fix irq type for arm twd and global timerGrygorii Strashko
As per ARM documentation PPI(0) ID27 - global timer interrupt is rising-edge sensitive. PPI(2) ID29 - twd interrupt is rising-edge sensitive. and the same is proved by GIC distributor register value GIC_DIST_CONFIG(0xC04) = 0x7DC00000. Hence, set IRQ triggering type to IRQ_TYPE_EDGE_RISING for ARM TWD and Global timers. Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-01-27drm/amd/powerplay: Update SMU firmware loading for StoneyRex Zhu
Fix firmware init on Stoney when powerplay is enabled. Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-01-27Bluetooth: Add missing COMPATIBLE_IOCTL for UART line disciplineMarcel Holtmann
The HCIUARTGETDEVICE, HCIUARTSETFLAGS and HCIUARTGETFLAGS ioctl are missing the COMPATIBLE_IOCTL declaration. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-01-27seccomp: always propagate NO_NEW_PRIVS on tsyncJann Horn
Before this patch, a process with some permissive seccomp filter that was applied by root without NO_NEW_PRIVS was able to add more filters to itself without setting NO_NEW_PRIVS by setting the new filter from a throwaway thread with NO_NEW_PRIVS. Signed-off-by: Jann Horn <jann@thejh.net> Cc: stable@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org>
2016-01-27btrfs: don't use GFP_HIGHMEM for free-space-tree bitmap kzallocChris Mason
This was copied incorrectly from the __vmalloc call. Signed-off-by: Chris Mason <clm@fb.com>
2016-01-27debugobjects: Allow bigger number of early boot objectsChristian Borntraeger
On my bigger s390 systems I always get "Out of memory. ODEBUG disabled". Since the number of objects is needed at compile time, we can not change the size dynamically before the caches etc are available. Doubling the size seems to do the trick. Since it is init data it will be freed anyway, this should be ok. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Link: http://lkml.kernel.org/r/1453905478-13409-1-git-send-email-borntraeger@de.ibm.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-01-27include/linux/cleancache.h: Clean up codeChen Gang
Let cleancache_fs_enabled() call cleancache_fs_enabled_mapping() directly. Remove redundant variable ret in cleancache_get_page(). Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2016-01-27cleancache: constify cleancache_ops structureJulia Lawall
The cleancache_ops structure is never modified, so declare it as const. Done with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2016-01-27Merge branch 'dev/fst-followup' of ↵Chris Mason
git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.5
2016-01-27btrfs: sysfs: check initialization state before updating featuresDavid Sterba
If the mount phase is not finished, we can't update the sysfs files. Reported-by: Chris Mason <clm@fb.com> Signed-off-by: David Sterba <dsterba@suse.com> Signed-off-by: Chris Mason <clm@fb.com>
2016-01-27ASoC: mxs-saif: fix clk_prepare() without matching clk_unprepare()Mans Rullgard
The clk_prepare() call in hw_params() has no matching clk_unprepare(), leaving the clk with an ever-increasing prepare count. Moreover, hw_params() can be called multiple times which would again leave us with a runaway prepare count. Fix this by moving the clk_prepare() call to the startup() function and adding a shutdown() function with a matching clk_unprepare() as these operations are already correctly bracketed by soc-core. Signed-off-by: Mans Rullgard <mans@mansr.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-27pinctrl: pxa: export pxa2xx_pinctrl_init()Masahiro Yamada
Building pinctrl-pxa27x.c as a module causes a link error: ERROR: "pxa2xx_pinctrl_init" [drivers/pinctrl/pxa/pinctrl-pxa27x.ko] undefined! Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-01-27crypto: shash - Fix has_key settingHerbert Xu
The has_key logic is wrong for shash algorithms as they always have a setkey function. So we should instead be testing against shash_no_setkey. Fixes: a5596d633278 ("crypto: hash - Add crypto_ahash_has_setkey") Cc: stable@vger.kernel.org Reported-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Tested-by: Stephan Mueller <smueller@chronox.de>
2016-01-27Merge tag 'iwlwifi-for-kalle-2016-01-26_2' of ↵Kalle Valo
https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes * Fix support for 3168 device + NVM version + firmware file name + device IDs * Fix a compilation warning in dvm calibration code * Fix the TPC (reduced Tx Power) code. This fixes performance issues * Device IDs for 8265
2016-01-27irqchip/atmel-aic: Fix wrong bit operation for IRQ priorityMilo Kim
Atmel AIC has common structure for SMR (Source Mode Register). bit[6:5] Interrupt source type bit[2:0] Priority level Other bits are unused. To update new priority value, bit[2:0] should be cleared first and then new priority level can be written. However, aic_common_set_priority() helper clears source type bits instead of priority bits. This patch fixes wrong mask bit operation. Fixes: b1479ebb7720 "irqchip: atmel-aic: Add atmel AIC/AIC5 drivers" Signed-off-by: Milo Kim <milo.kim@ti.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Ludovic Desroches <ludovic.desroches@atmel.com> Cc: Nicholas Ferre <nicolas.ferre@atmel.com> Cc: stable@vger.kernel.org #v3.17+ Link: http://lkml.kernel.org/r/1452669592-3401-2-git-send-email-milo.kim@ti.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-01-27tick/nohz: Set the correct expiry when switching to nohz/lowres modeWanpeng Li
commit 0ff53d096422 sets the next tick interrupt to the last jiffies update, i.e. in the past, because the forward operation is invoked before the set operation. There is no resulting damage (yet), but we get an extra pointless tick interrupt. Revert the order so we get the next tick interrupt in the future. Fixes: commit 0ff53d096422 "tick: sched: Force tick interrupt and get rid of softirq magic" Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/1453893967-3458-1-git-send-email-wanpeng.li@hotmail.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-01-27ASoC: imx-spdif: Fix crash on suspendLars-Peter Clausen
When registering a ASoC card the driver data of the parent device is set to point to the card. This driver data is used in the snd_soc_suspend()/resume() callbacks. The imx-spdif driver overwrites the driver data with custom data which causes snd_soc_suspend() to crash. Since the custom driver is not used anywhere simply deleting the line which sets the custom driver data fixes the issue. Fixes: 43ac946922b3 ("ASoC: imx-spdif: add snd_soc_pm_ops for spdif machine driver") Tested-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-27ARM: dts: at91: sama5d4 xplained: fix phy0 IRQ typeNicolas Ferre
For phy0 KSZ8081, the type of GPIO IRQ should be "level low" instead of "edge falling". Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Fixes: 38153a017896 ("ARM: at91/dt: sama5d4: add dts for sama5d4 xplained board") Cc: <stable@vger.kernel.org> # 4.1+
2016-01-27ARM: dts: at91: sama5d4 xplained: properly mux phy interruptAlexandre Belloni
No interrupt were received from the phy because PIOE 1 may not be properly muxed. It prevented proper link detection, especially since commit 321beec5047a ("net: phy: Use interrupts when available in NOLINK state") disables polling. Cc: <stable@vger.kernel.org> # 4.4 Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-01-27ARM: dts: at91: sama5d4ek: add phy address and IRQ for macb0Wenyou Yang
On SAMA5D4EK board, the Ethernet doesn't work after resuming from the suspend state. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> [nicolas.ferre@atmel.com: adapt to newer kernel] Fixes: 38153a017896 ("ARM: at91/dt: sama5d4: add dts for sama5d4 xplained board") Cc: <stable@vger.kernel.org> # 4.1+ Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-01-27ARM: dts: at91: sama5d2 xplained: add phy address and IRQ for macb0Nicolas Ferre
After 57a38effa598 (net: phy: micrel: disable broadcast for KSZ8081/KSZ8091) the macb0 interface has difficulties to come back from power saving mode if address not explicitly set up. As the micrel phy on the board is actually configured to show up at address 1 we use this explicitly. Adding the phy node and its real address fixes the issue. The phy IRQ and associated pinmux node is also added. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Cc: stable@vger.kernel.org # 4.4+ // manual merge needed
2016-01-27ARM: dts: at91: at91sam9n12ek: fix panel compatible stringAlexandre Belloni
Properly use qiaodian as the vendor prefix for the panel. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-01-27ARM: dts: at91: sama5d4: fix instance id of DBGUMohamed Jamsheeth Hajanajubudeen
Change instance id of DBGU to 45. Signed-off-by: Mohamed Jamsheeth Hajanajubudeen <mohamedjamsheeth.hajanajubudeen@atmel.com> Fixes: 7c661394c56c ("ARM: at91: dt: add device tree file for SAMA5D4 SoC") Cc: stable@vger.kernel.org # 3.18+ Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-01-27gpio: gpio-altera: Remove gpiochip on probe failure.Phil Reid
On failure to setup the irq altera_gpio_probe would return an error but not go to cleanup. This resulted in kernel fault "Unable to handle kernel paging request at virtual address xxxxxxxx" later on in of_gpiochip_find_and_xlate. Signed-off-by: Phil Reid <preid@electromag.com.au> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-01-26staging/speakup: Use tty_ldisc_ref() for paste kworkerPeter Hurley
As the function documentation for tty_ldisc_ref_wait() notes, it is only callable from a tty file_operations routine; otherwise there is no guarantee the ref won't be NULL. The key difference with the VT's paste_selection() is that is an ioctl, where __speakup_paste_selection() is completely async kworker, kicked off from interrupt context. Fixes: 28a821c30688 ("Staging: speakup: Update __speakup_paste_selection() tty (ab)usage to match vt") Cc: <stable@vger.kernel.org> Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-26n_tty: Fix unsafe reference to "other" ldiscPeter Hurley
Although n_tty_check_unthrottle() has a valid ldisc reference (since the tty core gets the ldisc ref in tty_read() before calling the line discipline read() method), it does not have a valid ldisc reference to the "other" pty of a pty pair. Since getting an ldisc reference for tty->link essentially open-codes tty_wakeup(), just replace with the equivalent tty_wakeup(). Cc: <stable@vger.kernel.org> Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-26tty: Fix unsafe ldisc reference via ioctl(TIOCGETD)Peter Hurley
ioctl(TIOCGETD) retrieves the line discipline id directly from the ldisc because the line discipline id (c_line) in termios is untrustworthy; userspace may have set termios via ioctl(TCSETS*) without actually changing the line discipline via ioctl(TIOCSETD). However, directly accessing the current ldisc via tty->ldisc is unsafe; the ldisc ptr dereferenced may be stale if the line discipline is changing via ioctl(TIOCSETD) or hangup. Wait for the line discipline reference (just like read() or write()) to retrieve the "current" line discipline id. Cc: <stable@vger.kernel.org> Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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