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linux/drivers/pinctrl/meson
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Xianwei Zhao e72ce02981 pinctrl: meson: amlogic-a4: fix deadlock issue 
Accessing the pinconf-pins sysfs node may deadlock.

pinconf_pins_show() holds pctldev->mutex, and the platform driver
calls pinctrl_find_gpio_range_from_pin(), which tries to acquire
the same mutex again, leading to a deadlock.

Use pinctrl_find_gpio_range_from_pin_nolock() to fix this issue.

Fixes: 6e9be3abb7 ("pinctrl: Add driver support for Amlogic SoCs")
Signed-off-by: Xianwei Zhao <xianwei.zhao@amlogic.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Linus Walleij <linusw@kernel.org>
History 2026-04-28 11:50:13 +02:00
..
Kconfig pinctrl: Kconfig: drop unneeded dependencies on OF_GPIO 2026-03-10 10:10:50 +01:00
Makefile pinctrl: Add driver support for Amlogic SoCs 2025-02-28 00:03:18 +01:00
pinctrl-amlogic-a4.c pinctrl: meson: amlogic-a4: fix deadlock issue 2026-04-28 11:50:13 +02:00
pinctrl-amlogic-c3.c pinctrl: meson: Constify some structures 2024-08-23 18:01:42 +02:00
pinctrl-amlogic-t7.c pinctrl: meson: Constify some structures 2024-08-23 18:01:42 +02:00
pinctrl-meson-a1.c pinctrl: meson: Constify some structures 2024-08-23 18:01:42 +02:00
pinctrl-meson-axg-pmx.c pinctrl: meson: Constify some structures 2024-08-23 18:01:42 +02:00
pinctrl-meson-axg-pmx.h pinctrl: meson: Constify some structures 2024-08-23 18:01:42 +02:00
pinctrl-meson-axg.c pinctrl: meson: Constify some structures 2024-08-23 18:01:42 +02:00
pinctrl-meson-g12a.c pinctrl: meson-g12a: add GPIOC_7 pcie_clkreqn pinmux 2025-08-19 14:18:38 +02:00
pinctrl-meson-gxbb.c pinctrl: meson: Constify some structures 2024-08-23 18:01:42 +02:00
pinctrl-meson-gxl.c pinctrl: meson-gxl: add missing i2c_d pinmux 2025-08-28 23:06:03 +02:00
pinctrl-meson-s4.c pinctrl: meson: Constify some structures 2024-08-23 18:01:42 +02:00
pinctrl-meson.c pinctrl: meson: mark the GPIO controller as sleeping 2026-01-19 01:13:22 +01:00
pinctrl-meson.h pinctrl: meson: Constify some structures 2024-08-23 18:01:42 +02:00
pinctrl-meson8-pmx.c pinctrl: meson: Constify some structures 2024-08-23 18:01:42 +02:00
pinctrl-meson8-pmx.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 446 2019-06-05 17:37:18 +02:00
pinctrl-meson8.c pinctrl: meson: Constify some structures 2024-08-23 18:01:42 +02:00
pinctrl-meson8b.c pinctrl: meson: Constify some structures 2024-08-23 18:01:42 +02:00