Thomas Weißschuh 93ac74cd6f leds: triggers: Flush pending brightness before activating trigger ...

[ Upstream commit ab477b766edd3bfb6321a6e3df4c790612613fae ]

The race fixed in timer_trig_activate() between a blocking
set_brightness() call and trigger->activate() can affect any trigger.
So move the call to flush_work() into led_trigger_set() where it can
avoid the race for all triggers.

Fixes: 0db37915d9 ("leds: avoid races with workqueue")
Fixes: 8c0f693c6e ("leds: avoid flush_work in atomic context")
Cc: stable@vger.kernel.org
Tested-by: Dustin L. Howett <dustin@howett.net>
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20240613-led-trigger-flush-v2-1-f4f970799d77@weissschuh.net
Signed-off-by: Lee Jones <lee@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2024-08-11 12:47:14 +02:00

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Kconfig

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ledtrig-activity.c

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ledtrig-audio.c

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ledtrig-backlight.c

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ledtrig-camera.c

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ledtrig-cpu.c

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ledtrig-default-on.c

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ledtrig-disk.c

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ledtrig-gpio.c

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ledtrig-heartbeat.c

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ledtrig-mtd.c

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ledtrig-netdev.c

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ledtrig-oneshot.c

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ledtrig-panic.c

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ledtrig-pattern.c

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ledtrig-timer.c

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ledtrig-transient.c

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ledtrig-tty.c

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Makefile

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