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2f44975bdf7f8a2636dbed27922d18fdc202aa37
linux/drivers/gpio
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Ricardo Ribalda Delgado 22ebdcbf51 gpiolib: Free the last requested descriptor 
commit 19a4fbffc9 upstream.

The current code only frees N-1 gpios if an error occurs during
gpiod_set_transitory, gpiod_direction_output or gpiod_direction_input.
Leading to gpios that cannot be used by userspace nor other drivers.

Cc: Timur Tabi <timur@codeaurora.org>
Cc: stable@vger.kernel.org
Fixes: ab3dbcf78f ("gpioib: do not free unrequested descriptors)
Reported-by: Jan Lorenzen <jl@newtec.dk>
Reported-by: Jim Paris <jim@jtan.com>
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-15 08:34:24 +09:00
..
devres.c
gpio: Propagate all errors in devm_get_gpiod_from_child()
2016-02-25 10:04:25 +01:00
gpio-74x164.c
gpio: 74x164: Use spi_write() helper instead of open coding
2016-06-23 11:07:12 +02:00
gpio-74xx-mmio.c
gpio: 74xx-mmio: Use devm_gpiochip_add_data() for gpio registration
2016-02-23 20:19:42 +05:30
gpio-104-dio-48e.c
gpio: 104-dio-48e: Fix control port offset computation off-by-one error
2016-06-08 10:08:12 +02:00
gpio-104-idi-48.c
gpio: 104-idi-48: Fix missing spin_lock_init for ack_lock
2016-06-13 14:48:10 +02:00
gpio-104-idio-16.c
gpio: 104-idio-16: Utilize the ISA bus driver
2016-05-02 09:32:04 -07:00
gpio-adnp.c
gpio: adnp: Use devm_gpiochip_add_data() for gpio registration
2016-02-23 20:19:46 +05:30
gpio-adp5520.c
gpio: adp5520: Use devm_gpiochip_add_data() for gpio registration
2016-02-23 20:34:06 +05:30
gpio-adp5588.c
gpio: adp5588: Fix sleep-in-atomic-context bug
2023-05-15 08:33:29 +09:00
gpio-altera.c
gpio: altera: Use handle_level_irq when configured as a level_high
2017-12-14 09:28:18 +01:00
gpio-amd8111.c
gpio: amd8111: Use devm_request_region
2016-02-16 00:19:52 +01:00
gpio-amdpt.c
gpio: amdpt: Add a new ACPI HID
2016-03-30 10:38:51 +02:00
gpio-arizona.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-aspeed.c
gpio: fix aspeed_gpio unmask irq
2018-05-16 10:08:42 +02:00
gpio-ath79.c
gpio: ath79: add missing MODULE_DESCRIPTION/LICENSE
2018-02-03 17:05:35 +01:00
gpio-axp209.c
gpio: axp209: Implement get_direction
2016-09-23 15:13:04 +02:00
gpio-bcm-kona.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-brcmstb.c
gpio: brcmstb: Return proper error if bank width is invalid
2016-04-15 10:09:48 +02:00
gpio-bt8xx.c
gpio: bt8xx: use gpiochip data pointer
2016-01-05 11:21:03 +01:00
gpio-clps711x.c
gpio: clps711x: Remove board support
2016-06-08 10:49:58 +02:00
gpio-crystalcove.c
gpio: crystalcove: Do not write regular gpio registers for virtual GPIOs
2018-04-13 19:48:04 +02:00
gpio-cs5535.c
gpio: cs5535: Use devm_gpiochip_add_data() for gpio registration
2016-02-23 20:35:28 +05:30
gpio-da9052.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-da9055.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-davinci.c
Merge branch 'devel' into for-next
2016-02-22 13:47:49 +01:00
gpio-dln2.c
gpio: dln2: Use devm_gpiochip_add_data() for gpio registration
2016-02-23 20:35:30 +05:30
gpio-dwapb.c
gpio: dwapb: add missing fwnode_handle_put() in dwapb_gpio_get_pdata()
2016-07-22 15:30:42 +02:00
gpio-em.c
gpio: em: use gpiochip data pointer
2016-01-05 11:21:05 +01:00
gpio-ep93xx.c
gpio: ep93xx: Use devm_gpiochip_add_data() for gpio registration
2016-02-23 20:35:30 +05:30
gpio-etraxfs.c
gpio: generic: factor into gpio_chip struct
2016-01-05 11:21:00 +01:00
gpio-f7188x.c
gpio: f7188x: use gpiochip_get_data instead of container_of
2016-09-18 13:35:06 +02:00
gpio-ge.c
gpio: ge: Use devm_gpiochip_add_data() for gpio registration
2016-02-23 20:35:31 +05:30
gpio-gpio-mm.c
gpio: Add GPIO support for the Diamond Systems GPIO-MM
2016-08-11 13:37:25 +02:00
gpio-grgpio.c
gpio: generic: factor into gpio_chip struct
2016-01-05 11:21:00 +01:00
gpio-htc-egpio.c
mfd/gpio: Move HTC GPIO driver to GPIO subsystem
2016-09-28 09:28:34 -07:00
gpio-ich.c
gpio: ich: Use devm_request_region
2016-02-16 00:19:53 +01:00
gpio-intel-mid.c
gpio: intel-mid: Fix build warning when !CONFIG_PM
2018-02-25 11:05:51 +01:00
gpio-iop.c
gpio: iop: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE
2018-02-03 17:05:35 +01:00
gpio-it87.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-janz-ttl.c
gpio: janz-ttl: Use devm_gpiochip_add_data() for gpio registration
2016-02-23 20:35:33 +05:30
gpio-kempld.c
gpio: kempld: Use devm_gpiochip_add_data() for gpio registration
2016-02-23 20:35:34 +05:30
gpio-ks8695.c
gpio: ks8695: remove irq_to_gpio function
2016-02-19 00:20:30 +01:00
gpio-loongson1.c
gpio: loongson1: remove redundant return value check
2016-09-23 15:10:00 +02:00
gpio-loongson.c
gpio: convert remaining users to gpiochip_add_data()
2016-01-05 11:21:20 +01:00
gpio-lp873x.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-lp3943.c
Revert "gpio: lp3943: Drop pin_used and lp3943_gpio_request/lp3943_gpio_free"
2016-03-09 22:00:27 +07:00
gpio-lpc18xx.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-lpc32xx.c
gpio: lpc32xx: remove unused platform data file
2016-09-12 14:23:37 +02:00
gpio-lynxpoint.c
gpio: lynxpoint: avoid potential warning on error path
2016-06-23 11:07:14 +02:00
gpio-max730x.c
gpio: max730x: set gpiochip data pointer before using it
2016-08-10 15:40:44 +02:00
gpio-max732x.c
gpio: max732x: use gpiochip data pointer
2016-01-05 11:21:07 +01:00
gpio-max7300.c
gpio: Drop owner assignment from i2c_driver
2015-11-30 09:31:00 +01:00
gpio-max7301.c
spi: Drop owner assignment from spi_drivers
2015-10-28 10:30:17 +09:00
gpio-max77620.c
gpio: max77620: get gpio value based on direction
2016-07-04 11:39:38 +02:00
gpio-mb86s7x.c
gpio: mb86s7x: make explicitly non-modular
2016-03-31 15:00:28 +02:00
gpio-mc9s08dz60.c
gpio: mc9s08dz60: make explicitly non-modular
2016-03-31 15:02:09 +02:00
gpio-mc33880.c
gpio: mc33880: use gpiochip data pointer
2016-01-05 11:21:07 +01:00
gpio-mcp23s08.c
gpio: mcp23s08: make driver depend on OF_GPIO
2016-09-08 00:42:57 +02:00
gpio-menz127.c
gpio: Fix wrong rounding in gpio-menz127
2023-05-15 08:29:18 +09:00
gpio-merrifield.c
gpio: merrifield: Protect irq_ack() and gpio_set() by lock
2016-07-22 15:30:42 +02:00
gpio-ml-ioh.c
gpio: ml-ioh: Fix buffer underwrite on probe error path
2023-05-15 08:14:26 +09:00
gpio-mm-lantiq.c
gpio: mm-lantiq: Do not use gpiochip_get_data() in ltq_mm_save_regs()
2016-01-13 10:21:06 +01:00
gpio-mmio.c
gpio: mmio: add brcm,bcm6345 support
2016-08-11 16:17:05 +02:00
gpio-mockup.c
gpio: mockup: dynamically allocate memory for chip name
2017-11-30 08:39:13 +00:00
gpio-moxart.c
gpio: moxart: make explicitly non-modular
2016-03-31 15:03:13 +02:00
gpio-mpc8xxx.c
gpio: mpc8xxx: Correct irq handler function
2016-10-24 02:20:40 +02:00
gpio-mpc5200.c
gpio: Include linux/gpio.h instead of asm/gpio.h
2016-02-16 00:20:03 +01:00
gpio-msic.c
gpio: msic: drop unused MODULE_ tags from non-modular code
2016-08-23 11:22:09 +02:00
gpio-mvebu.c
gpio/mvebu: Use irq_domain_add_linear
2016-11-01 19:31:49 +01:00
gpio-mxc.c
Merge tag 'gpio-v4.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
2016-10-05 11:49:09 -07:00
gpio-mxs.c
gpio: mxs: Unmap region obtained by of_iomap
2016-10-20 14:14:11 +02:00
gpio-octeon.c
gpio: octeon: Constify octeon_gpio_match table
2016-03-30 10:38:51 +02:00
gpio-omap.c
gpio: omap: return error if requested debounce time is not possible
2017-05-25 15:44:36 +02:00
gpio-palmas.c
gpio: palmas: fix implicit assumption module.h is present
2016-09-15 13:57:43 +02:00
gpio-pca953x.c
gpio: pca953x: Move memcpy into mutex lock for set multiple
2016-11-08 10:29:47 +01:00
gpio-pcf857x.c
gpio: pcf857x: restore the initial line state of all pcf lines
2016-06-07 09:35:16 +02:00
gpio-pch.c
gpio: pch: Optimize pch_gpio_get()
2016-01-05 15:46:34 +01:00
gpio-pisosr.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-pl061.c
gpio: pl061: implement .get_direction()
2016-04-28 14:36:37 +02:00
gpio-pxa.c
gpio: pxa: Fix potential NULL dereference
2023-05-15 08:21:07 +09:00
gpio-rc5t583.c
gpio: rc5t583: make explicitly non-modular
2016-04-05 17:02:35 +02:00
gpio-rcar.c
gpio: rcar: Add r8a7796 (R-Car M3-W) support
2016-09-08 01:15:46 +02:00
gpio-rdc321x.c
gpio: remove redundant owner assignments of drivers
2016-06-07 09:35:16 +02:00
gpio-sa1100.c
gpio: sa1100: fix irq probing for ucb1x00
2016-09-08 00:42:57 +02:00
gpio-sch311x.c
gpio: remove redundant owner assignments of drivers
2016-06-07 09:35:16 +02:00
gpio-sch.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-sodaville.c
gpio: sodaville: make it explicitly non-modular
2016-05-11 13:46:49 +02:00
gpio-spear-spics.c
gpio: spear-spics: drop unused MODULE_ tags from non-modular code
2016-08-23 11:23:41 +02:00
gpio-sta2x11.c
gpio: sta2x11: make explicitly non-modular
2016-03-31 15:07:40 +02:00
gpio-stmpe.c
gpio: stmpe: i2c transfer are forbiden in atomic context
2018-02-03 17:05:34 +01:00
gpio-stp-xway.c
gpio: stp-xway: Use devm_gpiochip_add_data() for gpio registration
2016-02-23 20:35:43 +05:30
gpio-sx150x.c
gpio: sx150x: fix implicit assumption module.h is present
2016-09-15 13:59:02 +02:00
gpio-syscon.c
gpio: syscon: Change the compatibility string
2016-06-08 10:48:17 +02:00
gpio-tb10x.c
gpio: tb10x: Use devm_gpiochip_add_data() for gpio registration
2016-02-23 20:35:44 +05:30
gpio-tc3589x.c
gpio: tc3589x: fix up .get_direction()
2016-11-15 10:33:30 +01:00
gpio-tegra.c
gpio: tegra: Move driver registration to subsys_init level
2023-05-15 08:13:46 +09:00
gpio-timberdale.c
gpio: timberdale: make it explicitly non-modular
2016-05-11 13:49:11 +02:00
gpio-tpic2810.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-tps6586x.c
gpio: remove redundant owner assignments of drivers
2016-06-07 09:35:16 +02:00
gpio-tps65086.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-tps65218.c
gpio: tps65218: use devm_gpiochip_add_data() for gpio registration
2016-09-18 13:18:13 +02:00
gpio-tps65910.c
gpio: remove redundant owner assignments of drivers
2016-06-07 09:35:16 +02:00
gpio-tps65912.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-ts4800.c
gpio: ts4800: Fix module autoload
2016-10-21 14:55:07 +02:00
gpio-ts4900.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-ts5500.c
gpio: ts5500: Use devm_gpiochip_add_data() for gpio registration
2016-02-23 20:35:49 +05:30
gpio-twl4030.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-twl6040.c
gpio: twl6040: Use devm_gpiochip_add_data() for gpio registration
2016-02-23 20:35:50 +05:30
gpio-tz1090-pdc.c
gpio: tz1090-pdc: use gpiochip data pointer
2016-01-05 11:21:16 +01:00
gpio-tz1090.c
gpio: tz1090: use gpiochip data pointer
2016-01-05 11:21:16 +01:00
gpio-ucb1400.c
gpio: ucb1400: Use devm_gpiochip_add_data() for gpio registration
2016-02-23 20:35:50 +05:30
gpio-vf610.c
gpio: vf610: drop unused MODULE_ tags from non-modular code
2016-08-23 11:24:40 +02:00
gpio-viperboard.c
gpio: remove redundant owner assignments of drivers
2016-06-07 09:35:16 +02:00
gpio-vr41xx.c
gpio: convert remaining users to gpiochip_add_data()
2016-01-05 11:21:20 +01:00
gpio-vx855.c
gpio: vx855: use the new open drain callback
2016-04-14 14:03:28 +02:00
gpio-wcove.c
gpio: gpio-wcove: fix GPIO IRQ status mask
2018-03-24 11:00:17 +01:00
gpio-wm831x.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-wm8350.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-wm8994.c
gpio: constify gpio_chip structures
2016-09-13 10:35:56 +02:00
gpio-ws16c48.c
gpio: ws16c48: Utilize the ISA bus driver
2016-05-02 09:32:04 -07:00
gpio-xgene-sb.c
gpio: xgene-sb: Use irq_domain_free_irqs_common()
2016-03-31 10:22:53 +02:00
gpio-xgene.c
gpio: xgene: mark PM functions as __maybe_unused
2018-02-25 11:05:52 +01:00
gpio-xilinx.c
gpio: xilinx: Add support to set multiple GPIO at once
2016-06-08 10:33:45 +02:00
gpio-xlp.c
gpio: Add ACPI support for XLP GPIO controller
2016-06-08 10:54:13 +02:00
gpio-xtensa.c
gpio: convert remaining users to gpiochip_add_data()
2016-01-05 11:21:20 +01:00
gpio-zevio.c
gpio: zevio: make it explicitly non-modular
2016-05-11 13:50:01 +02:00
gpio-zx.c
gpio: zx: make explicitly non-modular
2016-03-31 15:10:25 +02:00
gpio-zynq.c
gpio: Added zynq specific check for special pins on bank zero
2016-09-23 15:26:20 +02:00
gpiolib-acpi.c
ACPI / gpio: do not fall back to parsing _CRS when we get a deferral
2017-04-12 12:41:12 +02:00
gpiolib-legacy.c
Revert "gpiolib: Split GPIO flags parsing and GPIO configuration"
2016-07-04 16:51:29 +02:00
gpiolib-of.c
gpio: Fix crash due to registration race
2023-05-15 08:33:34 +09:00
gpiolib-sysfs.c
pinctrl&gpio: add new interface to set pull-down/up
2017-06-09 20:16:29 -07:00
gpiolib.c
gpiolib: Free the last requested descriptor
2023-05-15 08:34:24 +09:00
gpiolib.h
gpiolib: Mark gpio_suffixes array with __maybe_unused
2023-05-15 08:21:08 +09:00
Kconfig
gpio: mcp23s08: Select REGMAP/REGMAP_I2C to fix build error
2017-11-08 10:08:35 +01:00
Makefile
gpio: Remove GPIO_DEVRES option
2016-11-16 20:46:32 +01:00