Shreeya Patel 5467801f1f gpio: Restrict usage of GPIO chip irq members before initialization ... GPIO chip irq members are exposed before they could be completely initialized and this leads to race conditions. One such issue was observed for the gc->irq.domain variable which was accessed through the I2C interface in gpiochip_to_irq() before it could be initialized by gpiochip_add_irqchip(). This resulted in Kernel NULL pointer dereference. Following are the logs for reference :- kernel: Call Trace: kernel: gpiod_to_irq+0x53/0x70 kernel: acpi_dev_gpio_irq_get_by+0x113/0x1f0 kernel: i2c_acpi_get_irq+0xc0/0xd0 kernel: i2c_device_probe+0x28a/0x2a0 kernel: really_probe+0xf2/0x460 kernel: RIP: 0010:gpiochip_to_irq+0x47/0xc0 To avoid such scenarios, restrict usage of GPIO chip irq members before they are completely initialized. Signed-off-by: Shreeya Patel <shreeya.patel@collabora.com> Cc: stable@vger.kernel.org Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>		2022-04-04 14:41:34 +02:00
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Kconfig	Char/Misc and other driver updates for 5.18-rc1	2022-03-28 12:27:35 -07:00
Makefile	Char/Misc and other driver updates for 5.18-rc1	2022-03-28 12:27:35 -07:00
TODO	…
gpio-74x164.c	spi: make remove callback a void function	2022-02-09 13:00:45 +00:00
gpio-74xx-mmio.c	…
gpio-104-dio-48e.c	…
gpio-104-idi-48.c	…
gpio-104-idio-16.c	…
gpio-adnp.c	gpio: Get rid of duplicate of_node assignment in the drivers	2021-12-17 17:39:35 +01:00
gpio-adp5520.c	…
gpio-adp5588.c	…
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-amd-fch.c	…
gpio-amd8111.c	…
gpio-amdpt.c	gpio: Get rid of duplicate of_node assignment in the drivers	2021-12-17 17:39:35 +01:00
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: Convert aspeed_gpio.lock to raw_spinlock	2021-12-10 16:14:40 +01:00
gpio-ath79.c	…
gpio-bcm-kona.c	gpio: Setup parent device and get rid of unnecessary of_node assignment	2021-12-17 17:44:19 +01:00
gpio-bd9571mwv.c	…
gpio-bd71815.c	…
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: brcmstb: Use local variable to access OF node	2021-12-23 17:08:53 +01:00
gpio-bt8xx.c	…
gpio-cadence.c	…
gpio-clps711x.c	…
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: Set IRQ domain bus token to DOMAIN_BUS_WIRED	2022-01-24 15:48:10 +02:00
gpio-cs5535.c	…
gpio-da9052.c	…
gpio-da9055.c	…
gpio-davinci.c	gpio: Get rid of duplicate of_node assignment in the drivers	2021-12-17 17:39:35 +01:00
gpio-dln2.c	gpio: dln2: Fix interrupts when replugging the device	2021-12-19 15:03:30 +01:00
gpio-dwapb.c	gpio: dwapb: Switch to use fwnode instead of of_node	2022-01-03 11:06:18 +01:00
gpio-eic-sprd.c	gpio: Get rid of duplicate of_node assignment in the drivers	2021-12-17 17:39:35 +01:00
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-exar.c	…
gpio-f7188x.c	…
gpio-ftgpio010.c	…
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-grgpio.c	gpio: Get rid of duplicate of_node assignment in the drivers	2021-12-17 17:39:35 +01:00
gpio-gw-pld.c	gpio: Remove unused local OF node pointers	2021-12-22 10:05:26 +01:00
gpio-hisi.c	…
gpio-hlwd.c	…
gpio-htc-egpio.c	…
gpio-ich.c	…
gpio-idt3243x.c	gpio: idt3243x: Fix an ignored error return from platform_get_irq()	2022-01-20 09:05:46 +01:00
gpio-iop.c	…
gpio-it87.c	…
gpio-ixp4xx.c	…
gpio-janz-ttl.c	…
gpio-kempld.c	…
gpio-logicvc.c	…
gpio-loongson.c	…
gpio-loongson1.c	…
gpio-lp873x.c	…
gpio-lp3943.c	…
gpio-lp87565.c	…
gpio-lpc18xx.c	…
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-max730x.c	…
gpio-max732x.c	…
gpio-max3191x.c	spi: make remove callback a void function	2022-02-09 13:00:45 +00:00
gpio-max7300.c	…
gpio-max7301.c	spi: make remove callback a void function	2022-02-09 13:00:45 +00:00
gpio-max77620.c	…
gpio-max77650.c	…
gpio-mb86s7x.c	…
gpio-mc33880.c	spi: make remove callback a void function	2022-02-09 13:00:45 +00:00
gpio-menz127.c	…
gpio-merrifield.c	gpio: merrifield: check the return value of devm_kstrdup()	2022-01-24 17:23:15 +02:00
gpio-ml-ioh.c	gpio: ml-ioh: Change whitespace to match gpio-pch.c	2021-12-01 15:10:26 +02:00
gpio-mlxbf.c	…
gpio-mlxbf2.c	gpio updates for v5.16	2021-11-08 11:55:21 -08:00
gpio-mm-lantiq.c	…
gpio-mmio.c	…
gpio-mockup.c	gpio: mockup: Switch to use kasprintf_strarray()	2021-11-19 10:38:16 +02:00
gpio-moxtet.c	…
gpio-mpc8xxx.c	gpio: mpc8xxx: Fix an ignored error return from platform_get_irq()	2022-01-20 09:05:57 +01:00
gpio-mpc5200.c	…
gpio-msc313.c	gpio: msc313: Add support for SSD201 and SSD202D	2021-12-20 16:07:22 +01:00
gpio-mt7621.c	gpio: mt7621: Kill parent_device usage	2022-02-09 13:36:53 +00:00
gpio-mvebu.c	gpio: Get rid of duplicate of_node assignment in the drivers	2021-12-17 17:39:35 +01:00
gpio-mxc.c	…
gpio-mxs.c	…
gpio-octeon.c	…
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-pca9570.c	…
gpio-pcf857x.c	…
gpio-pch.c	gpio: pch: Cache &pdev->dev to reduce repetition	2021-12-01 15:10:26 +02:00
gpio-pci-idio-16.c	…
gpio-pcie-idio-24.c	…
gpio-pisosr.c	spi: make remove callback a void function	2022-02-09 13:00:45 +00:00
gpio-pl061.c	…
gpio-pmic-eic-sprd.c	gpio: Get rid of duplicate of_node assignment in the drivers	2021-12-17 17:39:35 +01:00
gpio-pxa.c	gpio: Setup parent device and get rid of unnecessary of_node assignment	2021-12-17 17:44:19 +01:00
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	…
gpio-rcar.c	gpio: rcar: Move PM device over to irq domain	2022-02-09 13:36:53 +00:00
gpio-rda.c	gpio: Remove unused local OF node pointers	2021-12-22 10:05:26 +01:00
gpio-rdc321x.c	…
gpio-realtek-otto.c	…
gpio-reg.c	…
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: Reset int_bothedge when changing trigger	2022-02-16 15:52:22 +01:00
gpio-sa1100.c	…
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: fix typo in a comment	2021-12-13 13:29:09 +02:00
gpio-sch311x.c	…
gpio-sifive.c	gpio: sifive: use the correct register to read output values	2022-02-08 10:43:15 +01:00
gpio-sim.c	gpio: sim: fix a typo	2022-03-10 10:02:19 +01:00
gpio-siox.c	…
gpio-sl28cpld.c	…
gpio-sodaville.c	…
gpio-spear-spics.c	…
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-syscon.c	…
gpio-tb10x.c	…
gpio-tc3589x.c	gpio: Get rid of duplicate of_node assignment in the drivers	2021-12-17 17:39:35 +01:00
gpio-tegra.c	gpio: tegra: Get rid of duplicate of_node assignment	2022-01-24 17:23:15 +02:00
gpio-tegra186.c	gpio: tegra186: Add IRQ per bank for Tegra241	2022-03-07 15:25:27 +01:00
gpio-thunderx.c	…
gpio-timberdale.c	…
gpio-tn48m.c	gpio: Add Delta TN48M CPLD GPIO driver	2022-02-25 09:59:35 +01:00
gpio-tpic2810.c	…
gpio-tps6586x.c	gpio: Propagate firmware node from a parent device	2021-12-17 17:50:46 +01:00
gpio-tps65086.c	…
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-tps68470.c	gpio: tps68470: Allow building as module	2022-01-24 17:23:15 +02:00
gpio-tqmx86.c	gpio: tpmx86: Move PM device over to irq domain	2022-02-09 13:36:54 +00:00
gpio-ts4800.c	…
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-twl6040.c	gpio: Propagate firmware node from a parent device	2021-12-17 17:50:46 +01:00
gpio-ucb1400.c	…
gpio-uniphier.c	gpio updates for v5.16	2021-11-08 11:55:21 -08:00
gpio-vf610.c	gpio: Get rid of duplicate of_node assignment in the drivers	2021-12-17 17:39:35 +01:00
gpio-viperboard.c	…
gpio-virtio.c	virtio: wrap config->reset calls	2022-01-14 18:50:52 -05:00
gpio-visconti.c	…
gpio-vr41xx.c	…
gpio-vx855.c	…
gpio-wcd934x.c	…
gpio-wcove.c	…
gpio-winbond.c	…
gpio-wm831x.c	gpio: Propagate firmware node from a parent device	2021-12-17 17:50:46 +01:00
gpio-wm8350.c	…
gpio-wm8994.c	…
gpio-ws16c48.c	…
gpio-xgene-sb.c	…
gpio-xgene.c	…
gpio-xgs-iproc.c	…
gpio-xilinx.c	…
gpio-xlp.c	gpio: xlp: Fix build errors from Netlogic XLP removal	2021-12-03 16:00:40 +01:00
gpio-xra1403.c	…
gpio-xtensa.c	…
gpio-zevio.c	…
gpio-zynq.c	…
gpio-zynqmp-modepin.c	…
gpiolib-acpi.c	gpiolib: acpi: Convert ACPI value of debounce to microseconds	2022-03-07 15:25:27 +01:00
gpiolib-acpi.h	…
gpiolib-cdev.c	gpiolib: Never return internal error codes to user space	2022-02-08 10:34:15 +01:00
gpiolib-cdev.h	…
gpiolib-devres.c	…
gpiolib-legacy.c	…
gpiolib-of.c	gpiolib: Introduce for_each_gpio_desc_with_flag() macro	2022-02-08 10:35:49 +01:00
gpiolib-of.h	…
gpiolib-sysfs.c	gpio updates for v5.18-rc1	2022-03-25 12:28:23 -07:00
gpiolib-sysfs.h	…
gpiolib.c	gpio: Restrict usage of GPIO chip irq members before initialization	2022-04-04 14:41:34 +02:00
gpiolib.h	gpio updates for v5.18-rc1	2022-03-25 12:28:23 -07:00