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| author | Herve Codina <herve.codina@bootlin.com> | 2025-01-22 12:19:14 +0300 |
|---|---|---|
| committer | Lee Jones <lee@kernel.org> | 2025-02-11 17:12:38 +0300 |
| commit | 276822a00db3c1061382b41e72cafc09d6a0ec30 (patch) | |
| tree | 08dbd73f61bd7a886858d5fde52efadbd090f785 /tools/testing/selftests/net/lib/py/utils.py | |
| parent | 373dacfeb55e1ac73dccd91b83437183ca0fbd43 (diff) | |
| download | linux-276822a00db3c1061382b41e72cafc09d6a0ec30.tar.xz | |
backlight: led_bl: Hold led_access lock when calling led_sysfs_disable()
Lockdep detects the following issue on led-backlight removal:
[ 142.315935] ------------[ cut here ]------------
[ 142.315954] WARNING: CPU: 2 PID: 292 at drivers/leds/led-core.c:455 led_sysfs_enable+0x54/0x80
...
[ 142.500725] Call trace:
[ 142.503176] led_sysfs_enable+0x54/0x80 (P)
[ 142.507370] led_bl_remove+0x80/0xa8 [led_bl]
[ 142.511742] platform_remove+0x30/0x58
[ 142.515501] device_remove+0x54/0x90
...
Indeed, led_sysfs_enable() has to be called with the led_access
lock held.
Hold the lock when calling led_sysfs_disable().
Fixes: ae232e45acf9 ("backlight: add led-backlight driver")
Cc: stable@vger.kernel.org
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Link: https://lore.kernel.org/r/20250122091914.309533-1-herve.codina@bootlin.com
Signed-off-by: Lee Jones <lee@kernel.org>
Diffstat (limited to 'tools/testing/selftests/net/lib/py/utils.py')
0 files changed, 0 insertions, 0 deletions