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[PATCH] leds: turn LED off when changing triggers

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I was playing with LED triggers when I noticed that changing from heartbeat
(or ide-disk) to "none" at the right moment would leave the LED stuck on.
This is easy to reproduce by doing "find / >/dev/null" with the ide-disk
trigger enabled and then switching to "none".

Here is a patch that fixes the problem by explicitly turning the LED off
after removing the existing trigger.

Signed-off-by: Paul Collins <paul@ondioline.org>
Acked-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Paul Collins 2006-09-30 23:27:41 -07:00 committed by Linus Torvalds
parent fd7bcea35e
commit e3e5fc91d9
1 changed files with 1 additions and 0 deletions
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1
drivers/leds/led-triggers.c
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@ -125,6 +125,7 @@ void led_trigger_set(struct led_classdev *led_cdev, struct led_trigger *trigger)
write_unlock_irqrestore(&led_cdev->trigger->leddev_list_lock, flags);
if (led_cdev->trigger->deactivate)
led_cdev->trigger->deactivate(led_cdev);
led_set_brightness(led_cdev, LED_OFF);
}
if (trigger) {
write_lock_irqsave(&trigger->leddev_list_lock, flags);