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linux/drivers/gpio
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Kent Gibson 1a51e24404 gpiolib: cdev: fix uninitialised kfifo 
[ Upstream commit ee0166b637 ]

If a line is requested with debounce, and that results in debouncing
in software, and the line is subsequently reconfigured to enable edge
detection then the allocation of the kfifo to contain edge events is
overlooked.  This results in events being written to and read from an
uninitialised kfifo.  Read events are returned to userspace.

Initialise the kfifo in the case where the software debounce is
already active.

Fixes: 65cff70464 ("gpiolib: cdev: support setting debounce")
Signed-off-by: Kent Gibson <warthog618@gmail.com>
Link: https://lore.kernel.org/r/20240510065342.36191-1-warthog618@gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2024-05-17 11:56:15 +02:00
..
gpio-74x164.c gpio: 74x164: Enable output pins after registers are reset 2024-03-06 14:45:19 +00:00
gpio-74xx-mmio.c gpio: 74xx-mmio: Use bits instead of plain numbers for flags 2022-07-28 15:47:56 +02:00
gpio-104-dio-48e.c gpio updates for v6.1-rc1 2022-10-08 09:46:29 -07:00
gpio-104-idi-48.c gpio updates for v6.1-rc1 2022-10-08 09:46:29 -07:00
gpio-104-idio-16.c gpio updates for v6.1-rc1 2022-10-08 09:46:29 -07:00
gpio-adnp.c gpio: adnp: Make use of device properties 2022-07-19 09:57:13 +02:00
gpio-adp5520.c gpio: adp5520: cleanup probe error path + remove platform_set_drvdata() 2021-05-21 15:29:53 +02:00
gpio-aggregator.c gpio: aggregator: Fix calling into sleeping GPIO controllers 2022-02-02 11:53:46 +01:00
gpio-altera-a10sr.c gpio: altera-a10sr: Switch to use fwnode instead of of_node 2022-01-24 17:23:15 +02:00
gpio-altera.c gpio: Bulk conversion to generic_handle_domain_irq() 2021-08-12 11:39:38 +01:00
gpio-amd-fch.c gpio: amd-fch: correct logic of GPIO_LINE_DIRECTION 2020-09-28 12:22:04 +02:00
gpio-amd8111.c gpio: amd8111: Fix PCI device reference count leak 2022-11-30 17:18:35 +01:00
gpio-amdpt.c gpio: use raw spinlock for gpio chip shadowed data 2022-04-25 12:10:02 +02:00
gpio-arizona.c gpio: Propagate firmware node from a parent device 2021-12-17 17:50:46 +01:00
gpio-aspeed-sgpio.c gpio updates for v5.17 2022-01-11 12:31:35 -08:00
gpio-aspeed.c gpio: aspeed: fix the GPIO number passed to pinctrl_gpio_set_config() 2023-10-10 22:00:45 +02:00
gpio-ath79.c gpio: Bulk conversion to generic_handle_domain_irq() 2021-08-12 11:39:38 +01:00
gpio-bcm-kona.c treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_30.RULE (part 2) 2022-06-10 14:51:35 +02:00
gpio-bd9571mwv.c gpio: bd9571mwv: remove platform_set_drvdata() + cleanup probe 2021-05-21 15:43:26 +02:00
gpio-bd71815.c gpio: Support ROHM BD71815 GPOs 2021-04-14 10:19:22 +01:00
gpio-bd71828.c gpio: Get rid of duplicate of_node assignment in the drivers 2021-12-17 17:39:35 +01:00
gpio-brcmstb.c gpio: updates for v6.0-rc1 2022-08-04 18:34:05 -07:00
gpio-bt8xx.c drivers: gpio: bt8xx: prefer dev_err()/dev_warn() over of raw printk 2020-12-08 09:41:32 +01:00
gpio-cadence.c gpio: use raw spinlock for gpio chip shadowed data 2022-04-25 12:10:02 +02:00
gpio-clps711x.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
gpio-creg-snps.c gpio: Setup parent device and get rid of unnecessary of_node assignment 2021-12-17 17:44:19 +01:00
gpio-crystalcove.c gpio: crystalcove: Use -ENOTSUPP consistently 2024-05-17 11:56:09 +02:00
gpio-cs5535.c gpio: cs5535: Simplify the return expression of cs5535_gpio_probe() 2020-12-12 01:37:46 +01:00
gpio-da9052.c gpio: da9052: remove platform_set_drvdata() + cleanup probe 2021-05-23 20:32:09 +02:00
gpio-da9055.c gpio: da9055: remove platform_set_drvdata() + cleanup probe 2021-05-21 14:45:57 +02:00
gpio-davinci.c gpio: davinci: Add irq chip flag to skip set wake 2023-04-13 16:55:22 +02:00
gpio-dln2.c gpio: dln2: make irq_chip immutable 2022-06-06 14:09:16 +03:00
gpio-dwapb.c gpio: dwapb: mask/unmask IRQ when disable/enale it 2024-01-01 12:39:07 +00:00
gpio-eic-sprd.c gpio: eic-sprd: Clear interrupt after set the interrupt type 2024-01-31 16:17:11 -08:00
gpio-em.c gpio: Get rid of duplicate of_node assignment in the drivers 2021-12-17 17:39:35 +01:00
gpio-en7523.c gpio: Add support for Airoha EN7523 GPIO controller 2022-02-02 10:16:19 +01:00
gpio-ep93xx.c gpio: ep93xx: Fix port F hwirq numbers in handler 2023-02-01 08:34:47 +01:00
gpio-exar.c gpio: exar: access MPIO registers on cascaded chips 2022-09-04 22:25:10 +02:00
gpio-f7188x.c gpio-f7188x: fix chip name and pin count on Nuvoton chip 2023-06-05 09:26:18 +02:00
gpio-ftgpio010.c gpio: ftgpio010: Make irqchip immutable 2022-09-20 16:10:53 +02:00
gpio-ge.c gpio: Get rid of duplicate of_node assignment in the drivers 2021-12-17 17:39:35 +01:00
gpio-gpio-mm.c gpio: gpio-mm: Implement and utilize register structures 2022-07-20 17:44:47 +02:00
gpio-grgpio.c gpio: grgpio: Fix device removing 2022-06-23 16:42:27 +02:00
gpio-gw-pld.c gpio: Remove unused local OF node pointers 2021-12-22 10:05:26 +01:00
gpio-hisi.c gpio: Bulk conversion to generic_handle_domain_irq() 2021-08-12 11:39:38 +01:00
gpio-hlwd.c gpio: use raw spinlock for gpio chip shadowed data 2022-04-25 12:10:02 +02:00
gpio-htc-egpio.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-i8255.c gpio: i8255: Introduce the Intel 8255 interface library module 2022-07-20 17:44:36 +02:00
gpio-i8255.h gpio: i8255: Introduce the Intel 8255 interface library module 2022-07-20 17:44:36 +02:00
gpio-ich.c gpio: ich: Switch to be dependent on LPC_ICH 2021-05-05 16:07:41 +02:00
gpio-idt3243x.c gpio: use raw spinlock for gpio chip shadowed data 2022-04-25 12:10:02 +02:00
gpio-imx-scu.c gpio: imx-scu: add imx-scu GPIO driver 2022-08-31 17:21:23 +02:00
gpio-iop.c Merge branch 'i2c/for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2019-07-15 21:10:39 -07:00
gpio-it87.c gpio: it87: remove unused code 2021-05-05 16:07:41 +02:00
gpio-ixp4xx.c gpio: ixp4xx: Make irqchip immutable 2022-09-13 16:17:45 +02:00
gpio-janz-ttl.c Bulk GPIO changes for the v5.3 kernel cycle: 2019-07-09 09:07:00 -07:00
gpio-kempld.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-logicvc.c gpio: logicvc: Remove redundant error printing in logicvc_gpio_probe() 2021-05-12 13:35:39 +02:00
gpio-loongson.c MIPS: Loongson64: Rename CPU TYPES 2019-10-31 15:03:10 -07:00
gpio-loongson1.c gpio: use raw spinlock for gpio chip shadowed data 2022-04-25 12:10:02 +02:00
gpio-lp873x.c treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_319.RULE 2022-06-10 14:51:36 +02:00
gpio-lp3943.c gpio: lp3943: unsigned to unsigned int cleanup 2022-07-19 09:57:40 +02:00
gpio-lp87565.c treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_319.RULE 2022-06-10 14:51:36 +02:00
gpio-lpc18xx.c drivers: gpio: lpc18xx: use devm_platform_ioremap_resource() 2019-04-05 00:04:26 +07:00
gpio-lpc32xx.c gpio: Setup parent device and get rid of unnecessary of_node assignment 2021-12-17 17:44:19 +01:00
gpio-madera.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-max730x.c gpio: max730x: Make __max730x_remove() return void 2021-10-13 19:52:26 +02:00
gpio-max732x.c gpio: max732x: Drop unused support for irq and setup code via platform data 2022-05-05 14:37:17 +02:00
gpio-max3191x.c spi: make remove callback a void function 2022-02-09 13:00:45 +00:00
gpio-max7300.c i2c: Make remove callback return void 2022-08-16 12:46:26 +02:00
gpio-max7301.c spi: make remove callback a void function 2022-02-09 13:00:45 +00:00
gpio-max77620.c gpio: max77620: Make the irqchip immutable 2022-05-05 14:56:37 +02:00
gpio-max77650.c gpio: max77650: add MODULE_ALIAS() 2019-07-29 00:03:52 +02:00
gpio-mb86s7x.c gpio: mb86s7x: Remove superfluous test for ACPI companion 2020-05-18 09:15:16 +02:00
gpio-mc33880.c spi: make remove callback a void function 2022-02-09 13:00:45 +00:00
gpio-menz127.c gpio: use raw spinlock for gpio chip shadowed data 2022-04-25 12:10:02 +02:00
gpio-merrifield.c gpio: merrifield: make irq_chip immutable 2022-06-06 14:09:16 +03:00
gpio-ml-ioh.c gpio: ml-ioh: Convert to use managed functions pcim* and devm_* 2022-05-20 19:20:35 +02:00
gpio-mlxbf.c gpio: gpio-mlxbf: Tell the compiler that ACPI functions may not be used 2020-07-08 09:24:08 +02:00
gpio-mlxbf2.c gpio: mlxbf2: Use generic_handle_irq_safe() 2022-09-19 15:08:38 +02:00
gpio-mm-lantiq.c gpio: mm-lantiq: Fix small typo 2020-04-28 22:41:25 +02:00
gpio-mmio.c gpio: use raw spinlock for gpio chip shadowed data 2022-04-25 12:10:02 +02:00
gpio-mockup.c gpio: mockup: Fix mode of debugfs files 2023-05-30 14:03:18 +01:00
gpio-moxtet.c treewide: change my e-mail address, fix my name 2021-04-09 14:54:23 -07:00
gpio-mpc8xxx.c gpio: mpc8xxx: Fix support for IRQ_TYPE_LEVEL_LOW flow_type in mpc85xx 2022-09-07 13:17:23 +02:00
gpio-mpc5200.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
gpio-msc313.c gpio: Remove dynamic allocation from populate_parent_alloc_arg() 2022-07-10 09:30:00 +01:00
gpio-mt7621.c gpio updates for v6.1-rc1 2022-10-08 09:46:29 -07:00
gpio-mvebu.c gpio: mvebu: fix irq domain leak 2023-08-03 10:23:49 +02:00
gpio-mxc.c gpio: mxc: Unlock on error path in mxc_flip_edge() 2023-02-01 08:34:47 +01:00
gpio-mxs.c gpio: mxs: Fix header comment 2022-06-23 23:18:13 +02:00
gpio-octeon.c drivers: gpio: octeon: use devm_platform_ioremap_resource() 2019-04-05 00:04:27 +07:00
gpio-omap.c gpio: omap: Move PM device over to irq domain 2022-02-09 13:36:53 +00:00
gpio-palmas.c gpio: Get rid of duplicate of_node assignment in the drivers 2021-12-17 17:39:35 +01:00
gpio-pca953x.c gpio: pca953x: avoid to use uninitialized value pinctrl 2023-01-12 12:02:20 +01:00
gpio-pca9570.c gpio: pca9570: add pca9571 support 2022-07-19 09:57:13 +02:00
gpio-pcf857x.c i2c: Make remove callback return void 2022-08-16 12:46:26 +02:00
gpio-pch.c gpio: pch: Change PCI device macros 2022-06-21 18:01:11 +03:00
gpio-pci-idio-16.c gpio: Bulk conversion to generic_handle_domain_irq() 2021-08-12 11:39:38 +01:00
gpio-pcie-idio-24.c gpio: Bulk conversion to generic_handle_domain_irq() 2021-08-12 11:39:38 +01:00
gpio-pisosr.c treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_319.RULE 2022-06-10 14:51:36 +02:00
gpio-pl061.c gpio: pl061: Make the irqchip immutable 2022-04-19 15:22:26 +01:00
gpio-pmic-eic-sprd.c gpio: pmic-eic-sprd: Add can_sleep flag for PMIC EIC chip 2023-10-06 14:56:50 +02:00
gpio-pxa.c gpio: pxa: disable pinctrl calls for MMP_GPIO 2023-10-10 22:00:45 +02:00
gpio-raspberrypi-exp.c gpio: Get rid of duplicate of_node assignment in the drivers 2021-12-17 17:39:35 +01:00
gpio-rc5t583.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201 2019-05-30 11:29:52 -07:00
gpio-rcar.c gpio: rcar: Make the irqchip immutable 2022-05-24 16:35:49 +02:00
gpio-rda.c gpio: Remove unused local OF node pointers 2021-12-22 10:05:26 +01:00
gpio-rdc321x.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
gpio-realtek-otto.c gpio: realtek-otto: switch to 32-bit I/O 2022-08-31 17:46:30 +02:00
gpio-reg.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-regmap.c gpio: regmap: Switch to use fwnode instead of of_node 2021-12-23 17:14:19 +01:00
gpio-rockchip.c gpio/rockchip: fix refcount leak in rockchip_gpiolib_register() 2022-12-06 10:10:46 +01:00
gpio-sa1100.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-sama5d2-piobu.c gpio: Get rid of duplicate of_node assignment in the drivers 2021-12-17 17:39:35 +01:00
gpio-sch.c gpio: sch: make irq_chip immutable 2022-06-06 14:09:16 +03:00
gpio-sch311x.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-sifive.c gpio: sifive: add missing check for platform_get_irq 2023-06-28 11:12:34 +02:00
gpio-sim.c gpio: sim: pass the GPIO device's software node to irq domain 2023-08-30 16:11:13 +02:00
gpio-siox.c gpio: siox: explicitly support only threaded irqs 2020-09-09 12:59:15 +02:00
gpio-sl28cpld.c gpio: sl28cpld: convert comma to semicolon 2021-02-15 11:43:26 +01:00
gpio-sodaville.c gpio: Bulk conversion to generic_handle_domain_irq() 2021-08-12 11:39:38 +01:00
gpio-spear-spics.c treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_56.RULE (part 2) 2022-06-10 14:51:35 +02:00
gpio-sprd.c gpio: Get rid of duplicate of_node assignment in the drivers 2021-12-17 17:39:35 +01:00
gpio-sta2x11.c gpio: sta2x11: fix typo in a comment 2021-12-17 12:26:13 +01:00
gpio-stmpe.c gpio: Get rid of duplicate of_node assignment in the drivers 2021-12-17 17:39:35 +01:00
gpio-stp-xway.c gpio: stp-xway: automatically drive GPHY leds on ar10 and grx390 2020-08-18 21:32:28 +02:00
gpio-syscon.c gpio: syscon: Remove usage of syscon_regmap_lookup_by_compatible 2022-05-02 10:41:33 +02:00
gpio-tb10x.c gpio: tb10x: Fix an error handling path in tb10x_gpio_probe() 2023-10-06 14:56:43 +02:00
gpio-tc3589x.c gpio: tc3589x: Make irqchip immutable 2022-10-03 20:56:46 +02:00
gpio-tegra.c gpio: tegra: Convert to immutable irq chip 2022-10-20 13:47:54 +02:00
gpio-tegra186.c gpio: Remove dynamic allocation from populate_parent_alloc_arg() 2022-07-10 09:30:00 +01:00
gpio-thunderx.c gpio: thunderx: Don't directly include asm-generic/msi.h 2022-07-11 09:15:58 +01:00
gpio-timberdale.c gpio: timberdale: Fix potential deadlock on &tgpio->lock 2023-10-25 12:03:09 +02:00
gpio-tn48m.c gpio: Add Delta TN48M CPLD GPIO driver 2022-02-25 09:59:35 +01:00
gpio-tpic2810.c i2c: Make remove callback return void 2022-08-16 12:46:26 +02:00
gpio-tps6586x.c gpio: Propagate firmware node from a parent device 2021-12-17 17:50:46 +01:00
gpio-tps65086.c gpio: Use new GPIO_LINE_DIRECTION 2019-11-07 09:27:48 +01:00
gpio-tps65218.c gpio: Get rid of duplicate of_node assignment in the drivers 2021-12-17 17:39:35 +01:00
gpio-tps65910.c gpio: Propagate firmware node from a parent device 2021-12-17 17:50:46 +01:00
gpio-tps65912.c gpio: tps65912: remove platform_set_drvdata() + cleanup probe 2021-05-24 20:58:46 +02:00
gpio-tps68470.c gpio: tps68470: Make tps68470_gpio_output() always set the initial value 2023-08-03 10:23:48 +02:00
gpio-tqmx86.c gpio: tqmx86: fix uninitialized variable girq 2022-09-21 09:31:22 +02:00
gpio-ts4800.c treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_56.RULE (part 2) 2022-06-10 14:51:35 +02:00
gpio-ts4900.c gpio fixes for v5.18-rc1 2022-04-01 10:26:09 -07:00
gpio-ts5500.c gpio: ts5500: Fix Links to Technologic Systems web resources 2022-03-31 16:44:57 +02:00
gpio-twl4030.c gpio: twl4030: Reorder functions which allows to drop a forward declaraion 2022-09-20 09:02:08 +02:00
gpio-twl6040.c gpio: Propagate firmware node from a parent device 2021-12-17 17:50:46 +01:00
gpio-ucb1400.c gpio: ucb1400: Use proper header 2022-08-31 13:37:32 +02:00
gpio-uniphier.c gpio updates for v5.16 2021-11-08 11:55:21 -08:00
gpio-vf610.c gpio: vf610: mask the gpio irq in system suspend and support wakeup 2023-10-25 12:03:16 +02:00
gpio-viperboard.c gpio: viperboard: remove platform_set_drvdata() call in probe 2021-08-31 11:29:28 +02:00
gpio-virtio.c virtio: wrap config->reset calls 2022-01-14 18:50:52 -05:00
gpio-visconti.c gpio: Remove dynamic allocation from populate_parent_alloc_arg() 2022-07-10 09:30:00 +01:00
gpio-vx855.c gpio: vx855: convert comma to semicolon 2021-02-15 11:43:29 +01:00
gpio-wcd934x.c gpio: wcd934x: Fix shift-out-of-bounds error 2021-05-27 09:51:35 +02:00
gpio-wcove.c gpio: wcove: Use -ENOTSUPP consistently 2024-05-17 11:56:09 +02:00
gpio-winbond.c gpio: winbond: Fix error code in winbond_gpio_get() 2022-06-23 16:29:55 +02:00
gpio-wm831x.c gpio: Propagate firmware node from a parent device 2021-12-17 17:50:46 +01:00
gpio-wm8350.c gpio: wm8350: remove platform_set_drvdata() + cleanup probe 2021-05-25 16:21:28 +02:00
gpio-wm8994.c gpio: wm8994: remove platform_set_drvdata() + cleanup probe 2021-05-25 16:21:14 +02:00
gpio-ws16c48.c gpio: ws16c48: Fix off-by-one error in WS16C48 resource region extent 2023-08-16 18:27:29 +02:00
gpio-xgene-sb.c gpio: xgene-sb: Drop extra check to call acpi_gpiochip_request_interrupts() 2020-05-18 09:16:31 +02:00
gpio-xgene.c gpio: xgene: simplify probe, return devm_gpiochip_add_data() directly 2021-05-23 20:30:26 +02:00
gpio-xgs-iproc.c gpio: xgs-iproc: Drop if with an always false condition 2022-07-19 09:57:13 +02:00
gpio-xilinx.c gpio: updates for v6.0-rc1 2022-08-04 18:34:05 -07:00
gpio-xlp.c gpio: xlp: Fix build errors from Netlogic XLP removal 2021-12-03 16:00:40 +01:00
gpio-xra1403.c gpio: xra1403: remove unneeded spi_set_drvdata() 2020-11-30 17:36:36 +01:00
gpio-xtensa.c gpio: xtensa: fix driver build 2019-12-09 10:40:18 +01:00
gpio-zevio.c gpio: zevio: drop of_gpio.h header 2022-05-14 14:41:21 +02:00
gpio-zynq.c gpio: Bulk conversion to generic_handle_domain_irq() 2021-08-12 11:39:38 +01:00
gpio-zynqmp-modepin.c gpio: modepin: Add driver support for modepin GPIO controller 2021-09-23 10:09:58 +02:00
gpiolib-acpi.c gpiolib: acpi: Ignore touchpad wakeup on GPD G1619-04 2024-01-31 16:17:08 -08:00
gpiolib-acpi.h gpiolib: acpi: Add wake_capable variants of acpi_dev_gpio_irq_get 2022-10-04 15:41:12 +02:00
gpiolib-cdev.c gpiolib: cdev: fix uninitialised kfifo 2024-05-17 11:56:15 +02:00
gpiolib-cdev.h gpiolib: fix sysfs when cdev is not selected 2020-11-05 15:35:40 +01:00
gpiolib-devres.c gpiolib: devres: Get rid of unused devm_gpio_free() 2022-07-19 09:56:34 +02:00
gpiolib-legacy.c gpio: Use SPDX header for core library 2018-09-25 09:08:48 +02:00
gpiolib-of.c gpiolib: fix OOB access in quirk callbacks 2022-09-20 08:30:57 +02:00
gpiolib-of.h gpiolib: Bind gpio_device to a driver to enable fw_devlink=on by default 2021-01-27 16:04:10 +01:00
gpiolib-sysfs.c gpiolib: sysfs: Fix error handling on failed export 2023-12-13 18:39:24 +01:00
gpiolib-sysfs.h gpiolib: move gpiolib-sysfs function declarations into their own header 2020-07-12 10:22:00 +02:00
gpiolib.c gpio: fix resource unwinding order in error path 2024-03-06 14:45:19 +00:00
gpiolib.h gpiolib: protect the GPIO device against being dropped while in use by user-space 2022-12-31 13:32:42 +01:00
Kconfig gpio: vf610: allow disabling the vf610 driver 2024-03-26 18:20:33 -04:00
Makefile Input updates for 6.1 merge window: 2022-10-11 10:53:25 -07:00
TODO gpio: Update TODO to mention immutable irq_chip structures 2022-04-19 15:22:26 +01:00