Ian Ray 58a5c93bd1 gpio: pca953x: fix pca953x_irq_bus_sync_unlock race ... [ Upstream commit bfc6444b57dc7186b6acc964705d7516cbaf3904 ] Ensure that `i2c_lock' is held when setting interrupt latch and mask in pca953x_irq_bus_sync_unlock() in order to avoid races. The other (non-probe) call site pca953x_gpio_set_multiple() ensures the lock is held before calling pca953x_write_regs(). The problem occurred when a request raced against irq_bus_sync_unlock() approximately once per thousand reboots on an i.MX8MP based system. * Normal case 0-0022: write register AI|3a {03,02,00,00,01} Input latch P0 0-0022: write register AI|49 {fc,fd,ff,ff,fe} Interrupt mask P0 0-0022: write register AI|08 {ff,00,00,00,00} Output P3 0-0022: write register AI|12 {fc,00,00,00,00} Config P3 * Race case 0-0022: write register AI|08 {ff,00,00,00,00} Output P3 0-0022: write register AI|08 {03,02,00,00,01} *** Wrong register *** 0-0022: write register AI|12 {fc,00,00,00,00} Config P3 0-0022: write register AI|49 {fc,fd,ff,ff,fe} Interrupt mask P0 Signed-off-by: Ian Ray <ian.ray@gehealthcare.com> Link: https://lore.kernel.org/r/20240620042915.2173-1-ian.ray@gehealthcare.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-07-25 09:49:15 +02:00
..
gpio-74x164.c
gpio-74xx-mmio.c
gpio-104-dio-48e.c
gpio-104-idi-48.c
gpio-104-idio-16.c
gpio-adnp.c
gpio-adp5520.c
gpio-aggregator.c
gpio-altera-a10sr.c
gpio-altera.c
gpio-amd8111.c
gpio-amd-fch.c
gpio-amdpt.c
gpio-arizona.c
gpio-aspeed-sgpio.c
gpio-aspeed.c
gpio-ath79.c
gpio-bcm-kona.c
gpio-bd9571mwv.c
gpio-bd71815.c
gpio-bd71828.c
gpio-brcmstb.c
gpio-bt8xx.c
gpio-cadence.c
gpio-clps711x.c
gpio-creg-snps.c
gpio-crystalcove.c	gpio: crystalcove: Use -ENOTSUPP consistently	2024-05-17 11:56:09 +02:00
gpio-cs5535.c
gpio-da9052.c
gpio-da9055.c
gpio-davinci.c	gpio: davinci: Validate the obtained number of IRQs	2024-07-05 09:31:50 +02:00
gpio-dln2.c
gpio-dwapb.c
gpio-eic-sprd.c
gpio-em.c
gpio-en7523.c
gpio-ep93xx.c
gpio-exar.c
gpio-f7188x.c
gpio-ftgpio010.c
gpio-ge.c
gpio-gpio-mm.c
gpio-grgpio.c
gpio-gw-pld.c
gpio-hisi.c
gpio-hlwd.c
gpio-htc-egpio.c
gpio-i8255.c
gpio-i8255.h
gpio-ich.c
gpio-idt3243x.c
gpio-imx-scu.c
gpio-iop.c
gpio-it87.c
gpio-ixp4xx.c
gpio-janz-ttl.c
gpio-kempld.c
gpio-logicvc.c
gpio-loongson1.c
gpio-loongson.c
gpio-lp873x.c
gpio-lp3943.c
gpio-lp87565.c
gpio-lpc18xx.c
gpio-lpc32xx.c
gpio-madera.c
gpio-max730x.c
gpio-max732x.c
gpio-max3191x.c
gpio-max7300.c
gpio-max7301.c
gpio-max77620.c
gpio-max77650.c
gpio-mb86s7x.c
gpio-mc33880.c
gpio-menz127.c
gpio-merrifield.c
gpio-ml-ioh.c
gpio-mlxbf2.c
gpio-mlxbf.c
gpio-mm-lantiq.c
gpio-mmio.c
gpio-mockup.c
gpio-moxtet.c
gpio-mpc8xxx.c
gpio-mpc5200.c
gpio-msc313.c
gpio-mt7621.c
gpio-mvebu.c
gpio-mxc.c
gpio-mxs.c
gpio-octeon.c
gpio-omap.c
gpio-palmas.c
gpio-pca953x.c	gpio: pca953x: fix pca953x_irq_bus_sync_unlock race	2024-07-25 09:49:15 +02:00
gpio-pca9570.c
gpio-pcf857x.c
gpio-pch.c
gpio-pci-idio-16.c
gpio-pcie-idio-24.c
gpio-pisosr.c
gpio-pl061.c
gpio-pmic-eic-sprd.c
gpio-pxa.c
gpio-raspberrypi-exp.c
gpio-rc5t583.c
gpio-rcar.c
gpio-rda.c
gpio-rdc321x.c
gpio-realtek-otto.c
gpio-reg.c
gpio-regmap.c
gpio-rockchip.c
gpio-sa1100.c
gpio-sama5d2-piobu.c
gpio-sch311x.c
gpio-sch.c
gpio-sifive.c
gpio-sim.c
gpio-siox.c
gpio-sl28cpld.c
gpio-sodaville.c
gpio-spear-spics.c
gpio-sprd.c
gpio-sta2x11.c
gpio-stmpe.c
gpio-stp-xway.c
gpio-syscon.c
gpio-tb10x.c
gpio-tc3589x.c
gpio-tegra186.c
gpio-tegra.c
gpio-thunderx.c
gpio-timberdale.c
gpio-tn48m.c
gpio-tpic2810.c
gpio-tps6586x.c
gpio-tps65086.c
gpio-tps65218.c
gpio-tps65910.c
gpio-tps65912.c
gpio-tps68470.c
gpio-tqmx86.c	gpio: tqmx86: fix broken IRQ_TYPE_EDGE_BOTH interrupt type	2024-06-21 14:35:49 +02:00
gpio-ts4800.c
gpio-ts4900.c
gpio-ts5500.c
gpio-twl4030.c
gpio-twl6040.c
gpio-ucb1400.c
gpio-uniphier.c
gpio-vf610.c
gpio-viperboard.c
gpio-virtio.c
gpio-visconti.c
gpio-vx855.c
gpio-wcd934x.c
gpio-wcove.c	gpio: wcove: Use -ENOTSUPP consistently	2024-05-17 11:56:09 +02:00
gpio-winbond.c
gpio-wm831x.c
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-xra1403.c
gpio-xtensa.c
gpio-zevio.c
gpio-zynq.c
gpio-zynqmp-modepin.c
gpiolib-acpi.c
gpiolib-acpi.h
gpiolib-cdev.c	gpiolib: cdev: Disallow reconfiguration without direction (uAPI v1)	2024-07-05 09:31:51 +02:00
gpiolib-cdev.h
gpiolib-devres.c
gpiolib-legacy.c
gpiolib-of.c
gpiolib-of.h
gpiolib-sysfs.c
gpiolib-sysfs.h
gpiolib.c	gpio: fix resource unwinding order in error path	2024-03-06 14:45:19 +00:00
gpiolib.h
Kconfig	gpio: tqmx86: fix typo in Kconfig label	2024-06-21 14:35:48 +02:00
Makefile
TODO