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2024-01-03gpio: rtd: Add support for Realtek DHC(Digital Home Center) RTD SoCsTzuyi Chang3-0/+618
This driver enables configuration of GPIO direction, GPIO values, GPIO debounce settings and handles GPIO interrupts. Signed-off-by: Tzuyi Chang <tychang@realtek.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2024-01-03dt-bindings: gpio: realtek: Add realtek,rtd-gpioTzuyi Chang1-0/+69
Add the device tree bindings for the Realtek DHC(Digital Home Center) RTD SoCs GPIO controllers. Signed-off-by: Tzuyi Chang <tychang@realtek.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2024-01-03gpio: pmic-eic-sprd: Configure the bit corresponding to the EIC through offsetWenhua Lin1-9/+10
A bank PMIC EIC contains 16 EICs, and the operating registers are BIT0-BIT15, such as BIT0 of the register operated by EIC0. Using the one-dimensional array reg[CACHE_NR_REGS] for maintenance will cause the configuration of other EICs to be affected when operating a certain EIC. In order to solve this problem, configure the bit corresponding to the EIC through offset. Signed-off-by: Wenhua Lin <Wenhua.Lin@unisoc.com> Reviewed-by: Chunyan Zhang <zhang.lyra@gmail.com> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2024-01-02gpio: dwapb: Use generic request, free and set_configEmil Renner Berthing1-4/+9
This way GPIO will be denied on pins already claimed by other devices and basic pin configuration (pull-up, pull-down etc.) can be done through the userspace GPIO API. Signed-off-by: Emil Renner Berthing <emil.renner.berthing@canonical.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Serge Semin <fancer.lancer@gmail.com> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2023-12-27gpio: sysfs: drop tabs from local variable declarationsBartosz Golaszewski1-33/+32
Older code has an annoying habit of putting tabs between the type and the name of the variable. This doesn't really add to readability and newer code doesn't do it so make the entire file consistent. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2023-12-27gpiolib: drop tabs from local variable declarationsBartosz Golaszewski1-20/+18
Older code has an annoying habit of putting tabs between the type and the name of the variable. This doesn't really add to readability and newer code doesn't do it so make the entire file consistent. While at it: convert 'unsigned' to 'unsigned int'. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2023-12-27gpiolib: remove extra_checksBartosz Golaszewski1-22/+9
extra_checks is only used in a few places. It also depends on a non-standard DEBUG define one needs to add to the source file. The overhead of removing it should be minimal (we already use pure might_sleep() in the code anyway) so drop it. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
2023-12-27gpio: tps65219: don't use CONFIG_DEBUG_GPIOBartosz Golaszewski1-9/+9
CONFIG_DEBUG_GPIO should only be used to enable debug log messages and for core GPIOLIB debugging. Don't use it to control the execution of potentially buggy code. Just put it under an always-false #if. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2023-12-27gpiolib: cdev: replace locking wrappers for gpio_device with guardsKent Gibson1-158/+47
Replace the wrapping functions that inhibit removal of the gpio chip with equivalent guards. Signed-off-by: Kent Gibson <warthog618@gmail.com> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2023-12-27gpiolib: cdev: replace locking wrappers for config_mutex with guardsKent Gibson1-39/+24
After the adoption of guard(), the locking wrappers that hold the config_mutex for linereq_set_values() and linereq_set_config() no longer add value, so combine them into the functions they wrap. Signed-off-by: Kent Gibson <warthog618@gmail.com> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2023-12-27gpiolib: cdev: allocate linereq using kvzalloc()Kent Gibson1-2/+2
The size of struct linereq may exceed a page, so allocate space for it using kvzalloc() instead of kzalloc() to handle the case where memory is heavily fragmented and kzalloc() cannot find a sufficient contiguous region. Signed-off-by: Kent Gibson <warthog618@gmail.com> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2023-12-27gpiolib: cdev: include overflow.hKent Gibson1-0/+1
struct_size() is used to calculate struct linereq size, so explicitly include overflow.h. Signed-off-by: Kent Gibson <warthog618@gmail.com> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2023-12-27Merge tag 'v6.7-rc7' into gpio/for-nextBartosz Golaszewski1131-7121/+12821
Linux 6.7-rc7
2023-12-23Linux 6.7-rc7Linus Torvalds1-1/+1
2023-12-23Merge tag 'x86-urgent-2023-12-23' of ↵Linus Torvalds3-3/+29
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Ingo Molnar: - Fix a secondary CPUs enumeration regression caused by creative MADT APIC table entries on certain systems. - Fix a race in the NOP-patcher that can spuriously trigger crashes on bootup. - Fix a bootup failure regression caused by the parallel bringup code, caused by firmware inconsistency between the APIC initialization states of the boot and secondary CPUs, on certain systems. * tag 'x86-urgent-2023-12-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/acpi: Handle bogus MADT APIC tables gracefully x86/alternatives: Disable interrupts and sync when optimizing NOPs in place x86/alternatives: Sync core before enabling interrupts x86/smpboot/64: Handle X2APIC BIOS inconsistency gracefully
2023-12-23Merge tag 'scsi-fixes' of ↵Linus Torvalds4-9/+11
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Four small fixes, three in drivers with the core one adding a batch indicator (for drivers which use it) to the error handler" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: ufs: core: Let the sq_lock protect sq_tail_slot access scsi: ufs: qcom: Return ufs_qcom_clk_scale_*() errors in ufs_qcom_clk_scale_notify() scsi: core: Always send batch on reset or error handling command scsi: bnx2fc: Fix skb double free in bnx2fc_rcv()
2023-12-23Merge tag 'usb-6.7-rc7' of ↵Linus Torvalds9-19/+49
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB / Thunderbolt fixes from Greg KH: "Here are some small bugfixes and new device ids for USB and Thunderbolt drivers for 6.7-rc7. Included in here are: - new usb-serial device ids - thunderbolt driver fixes - typec driver fix - usb-storage driver quirk added - fotg210 driver fix All of these have been in linux-next with no reported issues" * tag 'usb-6.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: USB: serial: option: add Quectel EG912Y module support USB: serial: ftdi_sio: update Actisense PIDs constant names usb: fotg210-hcd: delete an incorrect bounds test usb-storage: Add quirk for incorrect WP on Kingston DT Ultimate 3.0 G3 usb: typec: ucsi: fix gpio-based orientation detection net: usb: ax88179_178a: avoid failed operations when device is disconnected USB: serial: option: add Quectel RM500Q R13 firmware support USB: serial: option: add Foxconn T99W265 with new baseline thunderbolt: Fix minimum allocated USB 3.x and PCIe bandwidth thunderbolt: Fix memory leak in margining_port_remove()
2023-12-23Merge tag 'char-misc-6.7-rc7' of ↵Linus Torvalds19-218/+254
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char / misc driver fixes from Greg KH: "Here are a small number of various driver fixes for 6.7-rc7 that normally come through the char-misc tree, and one debugfs fix as well. Included in here are: - iio and hid sensor driver fixes for a number of small things - interconnect driver fixes - brcm_nvmem driver fixes - debugfs fix for previous fix - guard() definition in device.h so that many subsystems can start using it for 6.8-rc1 (requested by Dan Williams to make future merges easier) All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-6.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (21 commits) debugfs: initialize cancellations earlier Revert "iio: hid-sensor-als: Add light color temperature support" Revert "iio: hid-sensor-als: Add light chromaticity support" nvmem: brcm_nvram: store a copy of NVRAM content dt-bindings: nvmem: mxs-ocotp: Document fsl,ocotp driver core: Add a guard() definition for the device_lock() interconnect: qcom: icc-rpm: Fix peak rate calculation iio: adc: MCP3564: fix hardware identification logic iio: adc: MCP3564: fix calib_bias and calib_scale range checks iio: adc: meson: add separate config for axg SoC family iio: adc: imx93: add four channels for imx93 adc iio: adc: ti_am335x_adc: Fix return value check of tiadc_request_dma() interconnect: qcom: sm8250: Enable sync_state iio: triggered-buffer: prevent possible freeing of wrong buffer iio: imu: inv_mpu6050: fix an error code problem in inv_mpu6050_read_raw iio: imu: adis16475: use bit numbers in assign_bit() iio: imu: adis16475: add spi_device_id table iio: tmag5273: fix temperature offset interconnect: Treat xlate() returning NULL node as an error iio: common: ms_sensors: ms_sensors_i2c: fix humidity conversion time table ...
2023-12-23Merge tag 'input-for-v6.7-rc6' of ↵Linus Torvalds7-7/+62
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input updates from Dmitry Torokhov: - a quirk to AT keyboard driver to skip issuing "GET ID" command when 8042 is in translated mode and the device is a laptop/portable, because the "GET ID" command makes a bunch of recent laptops unhappy - a quirk to i8042 to disable multiplexed mode on Acer P459-G2-M which causes issues on resume - psmouse will activate native RMI4 protocol support for touchpad on ThinkPad L14 G1 - addition of Razer Wolverine V2 ID to xpad gamepad driver - mapping for airplane mode button in soc_button_array driver for TUXEDO laptops - improved error handling in ipaq-micro-keys driver - amimouse being prepared for platform remove callback returning void * tag 'input-for-v6.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: soc_button_array - add mapping for airplane mode button Input: xpad - add Razer Wolverine V2 support Input: ipaq-micro-keys - add error handling for devm_kmemdup Input: amimouse - convert to platform remove callback returning void Input: i8042 - add nomux quirk for Acer P459-G2-M Input: atkbd - skip ATKBD_CMD_GETID in translated mode Input: psmouse - enable Synaptics InterTouch for ThinkPad L14 G1
2023-12-22Input: soc_button_array - add mapping for airplane mode buttonChristoffer Sandberg1-0/+5
This add a mapping for the airplane mode button on the TUXEDO Pulse Gen3. While it is physically a key it behaves more like a switch, sending a key down on first press and a key up on 2nd press. Therefor the switch event is used here. Besides this behaviour it uses the HID usage-id 0xc6 (Wireless Radio Button) and not 0xc8 (Wireless Radio Slider Switch), but since neither 0xc6 nor 0xc8 are currently implemented at all in soc_button_array this not to standard behaviour is not put behind a quirk for the moment. Signed-off-by: Christoffer Sandberg <cs@tuxedo.de> Signed-off-by: Werner Sembach <wse@tuxedocomputers.com> Link: https://lore.kernel.org/r/20231215171718.80229-1-wse@tuxedocomputers.com Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2023-12-22Merge tag 'block-6.7-2023-12-22' of git://git.kernel.dk/linuxLinus Torvalds2-17/+7
Pull block fixes from Jens Axboe: "Just an NVMe pull request this time, with a fix for bad sleeping context, and a revert of a patch that caused some trouble" * tag 'block-6.7-2023-12-22' of git://git.kernel.dk/linux: nvme-pci: fix sleeping function called from interrupt context Revert "nvme-fc: fix race between error recovery and creating association"
2023-12-22Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds12-40/+97
Pull kvm fixes from Paolo Bonzini: "RISC-V: - Fix a race condition in updating external interrupt for trap-n-emulated IMSIC swfile - Fix print_reg defaults in get-reg-list selftest ARM: - Ensure a vCPU's redistributor is unregistered from the MMIO bus if vCPU creation fails - Fix building KVM selftests for arm64 from the top-level Makefile x86: - Fix breakage for SEV-ES guests that use XSAVES Selftests: - Fix bad use of strcat(), by not using strcat() at all" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: SEV: Do not intercept accesses to MSR_IA32_XSS for SEV-ES guests KVM: selftests: Fix dynamic generation of configuration names RISCV: KVM: update external interrupt atomically for IMSIC swfile KVM: riscv: selftests: Fix get-reg-list print_reg defaults KVM: selftests: Ensure sysreg-defs.h is generated at the expected path KVM: Convert comment into an assertion in kvm_io_bus_register_dev() KVM: arm64: vgic: Ensure that slots_lock is held in vgic_register_all_redist_iodevs() KVM: arm64: vgic: Force vcpu vgic teardown on vcpu destroy KVM: arm64: vgic: Add a non-locking primitive for kvm_vgic_vcpu_destroy() KVM: arm64: vgic: Simplify kvm_vgic_destroy()
2023-12-22Merge tag 'kvm-riscv-fixes-6.7-1' of https://github.com/kvm-riscv/linux into ↵Paolo Bonzini386-2073/+3906
kvm-master KVM/riscv fixes for 6.7, take #1 - Fix a race condition in updating external interrupt for trap-n-emulated IMSIC swfile - Fix print_reg defaults in get-reg-list selftest
2023-12-22Merge tag 'kvmarm-fixes-6.7-2' of ↵Paolo Bonzini6-31/+52
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into kvm-master KVM/arm64 fixes for 6.7, part #2 - Ensure a vCPU's redistributor is unregistered from the MMIO bus if vCPU creation fails - Fix building KVM selftests for arm64 from the top-level Makefile
2023-12-22Merge tag 'printk-for-6.8' of ↵Linus Torvalds1-3/+8
git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux Pull printk fix from Petr Mladek: - Prevent refcount warning from code releasing a fwnode * tag 'printk-for-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux: lib/vsprintf: Fix %pfwf when current node refcount == 0
2023-12-22Merge tag 'sound-6.7-rc7' of ↵Linus Torvalds17-96/+478
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "Apparently there were so many kids wishing bug fixes that made Santa busy; here we have lots of fixes although it's a bit late. But all changes are device-specific, hence it should be relatively safe to apply. Most of changes are for Cirrus codecs (for both ASoC and HD-audio), while the remaining are fixes for TI codecs, HD-audio and USB-audio quirks" * tag 'sound-6.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (24 commits) ALSA: hda: cs35l41: Only add SPI CS GPIO if SPI is enabled in kernel ALSA: hda: cs35l41: Do not allow uninitialised variables to be freed ASoC: fsl_sai: Fix channel swap issue on i.MX8MP ASoC: hdmi-codec: fix missing report for jack initial status ALSA: hda/realtek: Add quirks for ASUS Zenbook 2023 Models ALSA: hda: cs35l41: Support additional ASUS Zenbook 2023 Models ALSA: hda/realtek: Add quirks for ASUS Zenbook 2022 Models ALSA: hda: cs35l41: Support additional ASUS Zenbook 2022 Models ALSA: hda/realtek: Add quirks for ASUS ROG 2023 models ALSA: hda: cs35l41: Support additional ASUS ROG 2023 models ALSA: hda: cs35l41: Add config table to support many laptops without _DSD ASoC: Intel: bytcr_rt5640: Add new swapped-speakers quirk ASoC: Intel: bytcr_rt5640: Add quirk for the Medion Lifetab S10346 kselftest: alsa: fixed a print formatting warning ALSA: usb-audio: Increase delay in MOTU M quirk ASoC: tas2781: check the validity of prm_no/cfg_no ALSA: hda/tas2781: select program 0, conf 0 by default ALSA: hda/realtek: Add quirk for ASUS ROG GV302XA ASoC: cs42l43: Don't enable bias sense during type detect ASoC: Intel: soc-acpi-intel-mtl-match: Change CS35L56 prefixes to AMPn ...
2023-12-22Merge tag 'i2c-for-6.7-rc8' of ↵Linus Torvalds3-19/+50
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fixes from Wolfram Sang: - error path fixes (qcom-geni) - polling mode fix (rk3x) - target mode state machine fix (aspeed) * tag 'i2c-for-6.7-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: aspeed: Handle the coalesced stop conditions with the start conditions. i2c: rk3x: fix potential spinlock recursion on poll i2c: qcom-geni: fix missing clk_disable_unprepare() and geni_se_resources_off()
2023-12-22Merge tag 'gpio-fixes-for-v6.7-rc7' of ↵Linus Torvalds2-8/+20
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux Pull gpio fixes from Bartosz Golaszewski: "Here's another round of fixes from the GPIO subsystem for this release cycle. There's one commit adding synchronization to an ioctl() we overlooked previously and another synchronization changeset for one of the drivers: - add protection against GPIO device removal to an overlooked ioctl() - synchronize the interrupt mask register manually in gpio-dwapb" * tag 'gpio-fixes-for-v6.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: gpio: dwapb: mask/unmask IRQ when disable/enale it gpiolib: cdev: add gpio_device locking wrapper around gpio_ioctl()
2023-12-22Merge tag 'for-linus-6.7a-rc7-tag' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen fix from Juergen Gross: "A single patch fixing a build issue for x86 32-bit configurations with CONFIG_XEN, which was introduced in the 6.7 development cycle" * tag 'for-linus-6.7a-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: x86/xen: add CPU dependencies for 32-bit build
2023-12-22Merge tag 'drm-fixes-2023-12-22' of git://anongit.freedesktop.org/drm/drmLinus Torvalds11-33/+112
Pull drm fixes from Dave Airlie: "Pretty quiet for this week, just i915 and amdgpu fixes, I think the misc tree got lost this week, but didn't seem to have too much in it, so it can wait. I've also got a bunch of nouveau GSP fixes sailing around that'll probably land next time as well. amdgpu: - DCN 3.5 fixes - DCN 3.2 SubVP fix - GPUVM fix amdkfd: - SVM fix for APUs i915: - Fix state readout and check for DSC and bigjoiner combo - Fix a potential integer overflow - Reject async flips with bigjoiner - Fix MTL HDMI/DP PLL clock selection - Fix various issues by disabling pipe DMC events" * tag 'drm-fixes-2023-12-22' of git://anongit.freedesktop.org/drm/drm: drm/amdgpu: re-create idle bo's PTE during VM state machine reset drm/amd/display: dereference variable before checking for zero drm/amd/display: get dprefclk ss info from integration info table drm/amd/display: Add case for dcn35 to support usb4 dmub hpd event drm/amd/display: disable FPO and SubVP for older DMUB versions on DCN32x drm/amdkfd: svm range always mapped flag not working on APU drm/amd/display: Revert " drm/amd/display: Use channel_width = 2 for vram table 3.0" drm/i915/dmc: Don't enable any pipe DMC events drm/i915/mtl: Fix HDMI/DP PLL clock selection drm/i915: Reject async flips with bigjoiner drm/i915/hwmon: Fix static analysis tool reported issues drm/i915/display: Get bigjoiner config before dsc config during readout
2023-12-22Merge tag '9p-for-6.7-rc7' of https://github.com/martinetd/linuxLinus Torvalds2-8/+20
Pull 9p fixes from Dominique Martinet: "Two small fixes scheduled for stable trees: A tracepoint fix that's been reading past the end of messages forever, but semi-recently also went over the end of the buffer. And a potential incorrectly freeing garbage in pdu parsing error path" * tag '9p-for-6.7-rc7' of https://github.com/martinetd/linux: net: 9p: avoid freeing uninit memory in p9pdu_vreadf 9p: prevent read overrun in protocol dump tracepoint
2023-12-22Merge tag 'usb-serial-6.7-rc6' of ↵Greg Kroah-Hartman3-6/+11
https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus Johan writes: USB-serial device ids for 6.7-rc6 Here are some new modem device ids and a rename of a few ftdi product id defines. All have been in linux-next with no reported issues. * tag 'usb-serial-6.7-rc6' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial: USB: serial: option: add Quectel EG912Y module support USB: serial: ftdi_sio: update Actisense PIDs constant names USB: serial: option: add Quectel RM500Q R13 firmware support USB: serial: option: add Foxconn T99W265 with new baseline
2023-12-22debugfs: initialize cancellations earlierJohannes Berg1-2/+4
Tetsuo Handa pointed out that in the (now reverted) lockdep commit I initialized the data too late. The same is true for the cancellation data, it must be initialized before the cmpxchg(), otherwise it may be done twice and possibly even overwriting data in there already when there's a race. Fix that, which also requires destroying the mutex in case we lost the race. Fixes: 8c88a474357e ("debugfs: add API to allow debugfs operations cancellation") Reported-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Link: https://lore.kernel.org/r/20231221150444.1e47a0377f80.If7e8ba721ba2956f12c6e8405e7d61e154aa7ae7@changeid Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-12-22Merge tag 'drm-intel-fixes-2023-12-21' of ↵Dave Airlie4-6/+57
git://anongit.freedesktop.org/drm/drm-intel into drm-fixes drm/i915 fixes for v6.7-rc7: - Fix state readout and check for DSC and bigjoiner combo - Fix a potential integer overflow - Reject async flips with bigjoiner - Fix MTL HDMI/DP PLL clock selection - Fix various issues by disabling pipe DMC events Signed-off-by: Dave Airlie <airlied@redhat.com> From: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/87plyzsnxi.fsf@intel.com
2023-12-22Merge tag 'amd-drm-fixes-6.7-2023-12-20' of ↵Dave Airlie7-27/+55
https://gitlab.freedesktop.org/agd5f/linux into drm-fixes amd-drm-fixes-6.7-2023-12-20: amdgpu: - DCN 3.5 fixes - DCN 3.2 SubVP fix - GPUVM fix amdkfd: - SVM fix for APUs Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231220164845.4975-1-alexander.deucher@amd.com
2023-12-21Merge tag 'pinctrl-v6.7-4' of ↵Linus Torvalds6-5/+39
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control fixes from Linus Walleij: "Some driver fixes for v6.7, all are in drivers, the most interesting one is probably the AMD laptop suspend bug which really needs fixing. Freedestop org has the bug description: https://gitlab.freedesktop.org/drm/amd/-/issues/2812 Summary: - Ignore disabled device tree nodes in the Starfive 7100 and 7100 drivers. - Mask non-wake source pins with interrupt enabled at suspend in the AMD driver, this blocks unnecessary wakeups from misc interrupts. This can be power consuming because in many cases the system doesn't really suspend, it just wakes right back up. - Fix a typo breaking compilation of the cy8c95x0 driver, and fix up bugs in the get/set config callbacks. - Use a dedicated lock class for the PIO4 drivers IRQ. This fixes a crash on suspend" * tag 'pinctrl-v6.7-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: pinctrl: at91-pio4: use dedicated lock class for IRQ pinctrl: cy8c95x0: Fix get_pincfg pinctrl: cy8c95x0: Fix regression pinctrl: cy8c95x0: Fix typo pinctrl: amd: Mask non-wake source pins with interrupt enabled at suspend pinctrl: starfive: jh7100: ignore disabled device tree nodes pinctrl: starfive: jh7110: ignore disabled device tree nodes
2023-12-21Merge tag 'nvme-6.7-2023-12-21' of git://git.infradead.org/nvme into block-6.7Jens Axboe2-17/+7
Pull NVMe fixes from Keith: "nvme fixes for Linux 6.7 - Revert a commit with improper sleep context (Keith) - Fix async event handling sleep context (Maurizio)" * tag 'nvme-6.7-2023-12-21' of git://git.infradead.org/nvme: nvme-pci: fix sleeping function called from interrupt context Revert "nvme-fc: fix race between error recovery and creating association"
2023-12-21afs: Fix use-after-free due to get/remove race in volume treeDavid Howells2-3/+25
When an afs_volume struct is put, its refcount is reduced to 0 before the cell->volume_lock is taken and the volume removed from the cell->volumes tree. Unfortunately, this means that the lookup code can race and see a volume with a zero ref in the tree, resulting in a use-after-free: refcount_t: addition on 0; use-after-free. WARNING: CPU: 3 PID: 130782 at lib/refcount.c:25 refcount_warn_saturate+0x7a/0xda ... RIP: 0010:refcount_warn_saturate+0x7a/0xda ... Call Trace: afs_get_volume+0x3d/0x55 afs_create_volume+0x126/0x1de afs_validate_fc+0xfe/0x130 afs_get_tree+0x20/0x2e5 vfs_get_tree+0x1d/0xc9 do_new_mount+0x13b/0x22e do_mount+0x5d/0x8a __do_sys_mount+0x100/0x12a do_syscall_64+0x3a/0x94 entry_SYSCALL_64_after_hwframe+0x62/0x6a Fix this by: (1) When putting, use a flag to indicate if the volume has been removed from the tree and skip the rb_erase if it has. (2) When looking up, use a conditional ref increment and if it fails because the refcount is 0, replace the node in the tree and set the removal flag. Fixes: 20325960f875 ("afs: Reorganise volume and server trees to be rooted on the cell") Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: Jeffrey Altman <jaltman@auristor.com> cc: Marc Dionne <marc.dionne@auristor.com> cc: linux-afs@lists.infradead.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2023-12-21ida: Fix crash in ida_free when the bitmap is emptyMatthew Wilcox (Oracle)2-1/+41
The IDA usually detects double-frees, but that detection failed to consider the case when there are no nearby IDs allocated and so we have a NULL bitmap rather than simply having a clear bit. Add some tests to the test-suite to be sure we don't inadvertently reintroduce this problem. Unfortunately they're quite noisy so include a message to disregard the warnings. Reported-by: Zhenghan Wang <wzhmmmmm@gmail.com> Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2023-12-21afs: Fix overwriting of result of DNS queryDavid Howells1-2/+4
In afs_update_cell(), ret is the result of the DNS lookup and the errors are to be handled by a switch - however, the value gets clobbered in between by setting it to -ENOMEM in case afs_alloc_vlserver_list() fails. Fix this by moving the setting of -ENOMEM into the error handling for OOM failure. Further, only do it if we don't have an alternative error to return. Found by Linux Verification Center (linuxtesting.org) with SVACE. Based on a patch from Anastasia Belova [1]. Fixes: d5c32c89b208 ("afs: Fix cell DNS lookup") Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: Jeffrey Altman <jaltman@auristor.com> cc: Anastasia Belova <abelova@astralinux.ru> cc: Marc Dionne <marc.dionne@auristor.com> cc: linux-afs@lists.infradead.org cc: lvc-project@linuxtesting.org Link: https://lore.kernel.org/r/20231221085849.1463-1-abelova@astralinux.ru/ [1] Link: https://lore.kernel.org/r/1700862.1703168632@warthog.procyon.org.uk/ # v1 Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2023-12-21Merge tag 'afs-fixes-20231221' of ↵Linus Torvalds7-37/+64
git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs Pull AFS fixes from David Howells: "Improve the interaction of arbitrary lookups in the AFS dynamic root that hit DNS lookup failures [1] where kafs behaves differently from openafs and causes some applications to fail that aren't expecting that. Further, negative DNS results aren't getting removed and are causing failures to persist. - Always delete unused (particularly negative) dentries as soon as possible so that they don't prevent future lookups from retrying. - Fix the handling of new-style negative DNS lookups in ->lookup() to make them return ENOENT so that userspace doesn't get confused when stat succeeds but the following open on the looked up file then fails. - Fix key handling so that DNS lookup results are reclaimed almost as soon as they expire rather than sitting round either forever or for an additional 5 mins beyond a set expiry time returning EKEYEXPIRED. They persist for 1s as /bin/ls will do a second stat call if the first fails" Link: https://bugzilla.kernel.org/show_bug.cgi?id=216637 [1] Reviewed-by: Jeffrey Altman <jaltman@auristor.com> * tag 'afs-fixes-20231221' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs: keys, dns: Allow key types (eg. DNS) to be reclaimed immediately on expiry afs: Fix dynamic root lookup DNS check afs: Fix the dynamic root's d_delete to always delete unused dentries
2023-12-21Merge tag 'trace-v6.7-rc6-2' of ↵Linus Torvalds3-5/+22
git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull tracing fixes from Steven Rostedt: - Fix another kerneldoc warning - Fix eventfs files to inherit the ownership of its parent directory. The dynamic creation of dentries in eventfs did not take into account if the tracefs file system was mounted with a gid/uid, and would still default to the gid/uid of root. This is a regression. - Fix warning when synthetic event testing is enabled along with startup event tracing testing is enabled * tag 'trace-v6.7-rc6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: tracing / synthetic: Disable events after testing in synth_event_gen_test_init() eventfs: Have event files and directories default to parent uid and gid tracing/synthetic: fix kernel-doc warnings
2023-12-21Merge tag 'net-6.7-rc7' of ↵Linus Torvalds74-369/+561
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Paolo Abeni: "Including fixes from WiFi and bpf. Current release - regressions: - bpf: syzkaller found null ptr deref in unix_bpf proto add - eth: i40e: fix ST code value for clause 45 Previous releases - regressions: - core: return error from sk_stream_wait_connect() if sk_wait_event() fails - ipv6: revert remove expired routes with a separated list of routes - wifi rfkill: - set GPIO direction - fix crash with WED rx support enabled - bluetooth: - fix deadlock in vhci_send_frame - fix use-after-free in bt_sock_recvmsg - eth: mlx5e: fix a race in command alloc flow - eth: ice: fix PF with enabled XDP going no-carrier after reset - eth: bnxt_en: do not map packet buffers twice Previous releases - always broken: - core: - check vlan filter feature in vlan_vids_add_by_dev() and vlan_vids_del_by_dev() - check dev->gso_max_size in gso_features_check() - mptcp: fix inconsistent state on fastopen race - phy: skip LED triggers on PHYs on SFP modules - eth: mlx5e: - fix double free of encap_header - fix slab-out-of-bounds in mlx5_query_nic_vport_mac_list()" * tag 'net-6.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (69 commits) net: check dev->gso_max_size in gso_features_check() kselftest: rtnetlink.sh: use grep_fail when expecting the cmd fail net/ipv6: Revert remove expired routes with a separated list of routes net: avoid build bug in skb extension length calculation net: ethernet: mtk_wed: fix possible NULL pointer dereference in mtk_wed_wo_queue_tx_clean() net: stmmac: fix incorrect flag check in timestamp interrupt selftests: add vlan hw filter tests net: check vlan filter feature in vlan_vids_add_by_dev() and vlan_vids_del_by_dev() net: hns3: add new maintainer for the HNS3 ethernet driver net: mana: select PAGE_POOL net: ks8851: Fix TX stall caused by TX buffer overrun ice: Fix PF with enabled XDP going no-carrier after reset ice: alter feature support check for SRIOV and LAG ice: stop trashing VF VSI aggregator node ID information mailmap: add entries for Geliang Tang mptcp: fill in missing MODULE_DESCRIPTION() mptcp: fix inconsistent state on fastopen race selftests: mptcp: join: fix subflow_send_ack lookup net: phy: skip LED triggers on PHYs on SFP modules bpf: Add missing BPF_LINK_TYPE invocations ...
2023-12-21USB: serial: option: add Quectel EG912Y module supportAlper Ak1-0/+2
Add Quectel EG912Y "DIAG, AT, MODEM" 0x6001: ECM / RNDIS + DIAG + AT + MODEM T: Bus=01 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 3 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=2c7c ProdID=6001 Rev= 3.18 S: Manufacturer=Android S: Product=Android S: SerialNumber=0000 C:* #Ifs= 5 Cfg#= 1 Atr=e0 MxPwr=500mA A: FirstIf#= 0 IfCount= 2 Cls=02(comm.) Sub=06 Prot=00 I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=06 Prot=00 Driver=cdc_ether E: Ad=87(I) Atr=03(Int.) MxPS= 64 Ivl=4096ms I: If#= 1 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_ether I:* If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_ether E: Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=0c(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=0b(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms I:* If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option E: Ad=89(I) Atr=03(Int.) MxPS= 64 Ivl=4096ms E: Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=0f(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms I:* If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option E: Ad=88(I) Atr=03(Int.) MxPS= 64 Ivl=4096ms E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=0a(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms Signed-off-by: Alper Ak <alperyasinak1@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <johan@kernel.org>
2023-12-21tracing / synthetic: Disable events after testing in synth_event_gen_test_init()Steven Rostedt (Google)1-0/+11
The synth_event_gen_test module can be built in, if someone wants to run the tests at boot up and not have to load them. The synth_event_gen_test_init() function creates and enables the synthetic events and runs its tests. The synth_event_gen_test_exit() disables the events it created and destroys the events. If the module is builtin, the events are never disabled. The issue is, the events should be disable after the tests are run. This could be an issue if the rest of the boot up tests are enabled, as they expect the events to be in a known state before testing. That known state happens to be disabled. When CONFIG_SYNTH_EVENT_GEN_TEST=y and CONFIG_EVENT_TRACE_STARTUP_TEST=y a warning will trigger: Running tests on trace events: Testing event create_synth_test: Enabled event during self test! ------------[ cut here ]------------ WARNING: CPU: 2 PID: 1 at kernel/trace/trace_events.c:4150 event_trace_self_tests+0x1c2/0x480 Modules linked in: CPU: 2 PID: 1 Comm: swapper/0 Not tainted 6.7.0-rc2-test-00031-gb803d7c664d5-dirty #276 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:event_trace_self_tests+0x1c2/0x480 Code: bb e8 a2 ab 5d fc 48 8d 7b 48 e8 f9 3d 99 fc 48 8b 73 48 40 f6 c6 01 0f 84 d6 fe ff ff 48 c7 c7 20 b6 ad bb e8 7f ab 5d fc 90 <0f> 0b 90 48 89 df e8 d3 3d 99 fc 48 8b 1b 4c 39 f3 0f 85 2c ff ff RSP: 0000:ffffc9000001fdc0 EFLAGS: 00010246 RAX: 0000000000000029 RBX: ffff88810399ca80 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffffb9f19478 RDI: ffff88823c734e64 RBP: ffff88810399f300 R08: 0000000000000000 R09: fffffbfff79eb32a R10: ffffffffbcf59957 R11: 0000000000000001 R12: ffff888104068090 R13: ffffffffbc89f0a0 R14: ffffffffbc8a0f08 R15: 0000000000000078 FS: 0000000000000000(0000) GS:ffff88823c700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000001f6282001 CR4: 0000000000170ef0 Call Trace: <TASK> ? __warn+0xa5/0x200 ? event_trace_self_tests+0x1c2/0x480 ? report_bug+0x1f6/0x220 ? handle_bug+0x6f/0x90 ? exc_invalid_op+0x17/0x50 ? asm_exc_invalid_op+0x1a/0x20 ? tracer_preempt_on+0x78/0x1c0 ? event_trace_self_tests+0x1c2/0x480 ? __pfx_event_trace_self_tests_init+0x10/0x10 event_trace_self_tests_init+0x27/0xe0 do_one_initcall+0xd6/0x3c0 ? __pfx_do_one_initcall+0x10/0x10 ? kasan_set_track+0x25/0x30 ? rcu_is_watching+0x38/0x60 kernel_init_freeable+0x324/0x450 ? __pfx_kernel_init+0x10/0x10 kernel_init+0x1f/0x1e0 ? _raw_spin_unlock_irq+0x33/0x50 ret_from_fork+0x34/0x60 ? __pfx_kernel_init+0x10/0x10 ret_from_fork_asm+0x1b/0x30 </TASK> This is because the synth_event_gen_test_init() left the synthetic events that it created enabled. By having it disable them after testing, the other selftests will run fine. Link: https://lore.kernel.org/linux-trace-kernel/20231220111525.2f0f49b0@gandalf.local.home Cc: stable@vger.kernel.org Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Tom Zanussi <zanussi@kernel.org> Fixes: 9fe41efaca084 ("tracing: Add synth event generation test module") Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Reported-by: Alexander Graf <graf@amazon.com> Tested-by: Alexander Graf <graf@amazon.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2023-12-21eventfs: Have event files and directories default to parent uid and gidSteven Rostedt (Google)1-3/+9
Dongliang reported: I found that in the latest version, the nodes of tracefs have been changed to dynamically created. This has caused me to encounter a problem where the gid I specified in the mounting parameters cannot apply to all files, as in the following situation: /data/tmp/events # mount | grep tracefs tracefs on /data/tmp type tracefs (rw,seclabel,relatime,gid=3012) gid 3012 = readtracefs /data/tmp # ls -lh total 0 -r--r----- 1 root readtracefs 0 1970-01-01 08:00 README -r--r----- 1 root readtracefs 0 1970-01-01 08:00 available_events ums9621_1h10:/data/tmp/events # ls -lh total 0 drwxr-xr-x 2 root root 0 2023-12-19 00:56 alarmtimer drwxr-xr-x 2 root root 0 2023-12-19 00:56 asoc It will prevent certain applications from accessing tracefs properly, I try to avoid this issue by making the following modifications. To fix this, have the files created default to taking the ownership of the parent dentry unless the ownership was previously set by the user. Link: https://lore.kernel.org/linux-trace-kernel/1703063706-30539-1-git-send-email-dongliang.cui@unisoc.com/ Link: https://lore.kernel.org/linux-trace-kernel/20231220105017.1489d790@gandalf.local.home Cc: stable@vger.kernel.org Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Hongyu Jin <hongyu.jin@unisoc.com> Fixes: 28e12c09f5aa0 ("eventfs: Save ownership and mode") Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Reported-by: Dongliang Cui <cuidongliang390@gmail.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2023-12-21keys, dns: Allow key types (eg. DNS) to be reclaimed immediately on expiryDavid Howells6-23/+47
If a key has an expiration time, then when that time passes, the key is left around for a certain amount of time before being collected (5 mins by default) so that EKEYEXPIRED can be returned instead of ENOKEY. This is a problem for DNS keys because we want to redo the DNS lookup immediately at that point. Fix this by allowing key types to be marked such that keys of that type don't have this extra period, but are reclaimed as soon as they expire and turn this on for dns_resolver-type keys. To make this easier to handle, key->expiry is changed to be permanent if TIME64_MAX rather than 0. Furthermore, give such new-style negative DNS results a 1s default expiry if no other expiry time is set rather than allowing it to stick around indefinitely. This shouldn't be zero as ls will follow a failing stat call immediately with a second with AT_SYMLINK_NOFOLLOW added. Fixes: 1a4240f4764a ("DNS: Separate out CIFS DNS Resolver code") Signed-off-by: David Howells <dhowells@redhat.com> Tested-by: Markus Suvanto <markus.suvanto@gmail.com> cc: Wang Lei <wang840925@gmail.com> cc: Jeff Layton <jlayton@redhat.com> cc: Steve French <smfrench@gmail.com> cc: Marc Dionne <marc.dionne@auristor.com> cc: Jarkko Sakkinen <jarkko@kernel.org> cc: "David S. Miller" <davem@davemloft.net> cc: Eric Dumazet <edumazet@google.com> cc: Jakub Kicinski <kuba@kernel.org> cc: Paolo Abeni <pabeni@redhat.com> cc: linux-afs@lists.infradead.org cc: linux-cifs@vger.kernel.org cc: linux-nfs@vger.kernel.org cc: ceph-devel@vger.kernel.org cc: keyrings@vger.kernel.org cc: netdev@vger.kernel.org
2023-12-21Merge tag 'for-netdev' of ↵Paolo Abeni4-0/+45
https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf Daniel Borkmann says: ==================== pull-request: bpf 2023-12-21 Hi David, hi Jakub, hi Paolo, hi Eric, The following pull-request contains BPF updates for your *net* tree. We've added 3 non-merge commits during the last 5 day(s) which contain a total of 4 files changed, 45 insertions(+). The main changes are: 1) Fix a syzkaller splat which triggered an oob issue in bpf_link_show_fdinfo(), from Jiri Olsa. 2) Fix another syzkaller-found issue which triggered a NULL pointer dereference in BPF sockmap for unconnected unix sockets, from John Fastabend. bpf-for-netdev * tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: bpf: Add missing BPF_LINK_TYPE invocations bpf: sockmap, test for unconnected af_unix sock bpf: syzkaller found null ptr deref in unix_bpf proto add ==================== Link: https://lore.kernel.org/r/20231221104844.1374-1-daniel@iogearbox.net Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-12-21gpio: dwapb: mask/unmask IRQ when disable/enale itxiongxin1-4/+8
In the hardware implementation of the I2C HID driver based on DesignWare GPIO IRQ chip, when the user continues to use the I2C HID device in the suspend process, the I2C HID interrupt will be masked after the resume process is finished. This is because the disable_irq()/enable_irq() of the DesignWare GPIO driver does not synchronize the IRQ mask register state. In normal use of the I2C HID procedure, the GPIO IRQ irq_mask()/irq_unmask() functions are called in pairs. In case of an exception, i2c_hid_core_suspend() calls disable_irq() to disable the GPIO IRQ. With low probability, this causes irq_unmask() to not be called, which causes the GPIO IRQ to be masked and not unmasked in enable_irq(), raising an exception. Add synchronization to the masked register state in the dwapb_irq_enable()/dwapb_irq_disable() function. mask the GPIO IRQ before disabling it. After enabling the GPIO IRQ, unmask the IRQ. Fixes: 7779b3455697 ("gpio: add a driver for the Synopsys DesignWare APB GPIO block") Cc: stable@kernel.org Co-developed-by: Riwen Lu <luriwen@kylinos.cn> Signed-off-by: Riwen Lu <luriwen@kylinos.cn> Signed-off-by: xiongxin <xiongxin@kylinos.cn> Acked-by: Serge Semin <fancer.lancer@gmail.com> Reviewed-by: Andy Shevchenko <andy@kernel.org> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2023-12-21gpiolib: cdev: add gpio_device locking wrapper around gpio_ioctl()Kent Gibson1-4/+12
While the GPIO cdev gpio_ioctl() call is in progress, the kernel can call gpiochip_remove() which will set gdev->chip to NULL, after which any subsequent access will cause a crash. gpio_ioctl() was overlooked by the previous fix to protect syscalls (bdbbae241a04), so add protection for that. Fixes: bdbbae241a04 ("gpiolib: protect the GPIO device against being dropped while in use by user-space") Fixes: d7c51b47ac11 ("gpio: userspace ABI for reading/writing GPIO lines") Fixes: 3c0d9c635ae2 ("gpiolib: cdev: support GPIO_V2_GET_LINE_IOCTL and GPIO_V2_LINE_GET_VALUES_IOCTL") Fixes: aad955842d1c ("gpiolib: cdev: support GPIO_V2_GET_LINEINFO_IOCTL and GPIO_V2_GET_LINEINFO_WATCH_IOCTL") Signed-off-by: Kent Gibson <warthog618@gmail.com> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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