led: core: Use atomic bit-field for the blink-flags

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All the LED_BLINK* flags are accessed read-modify-write from e.g.
led_set_brightness and led_blink_set_oneshot while both
set_brightness_work and the blink_timer may be running.

If these race then the modify step done by one of them may be lost,
switch the LED_BLINK* flags to a new atomic work_flags bit-field
to avoid this race.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>

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Hans de Goede 2016-11-08 14:38:46 +01:00 • committed by Jacek Anaszewski

parent 8338eab50f

commit a9c6ce57ec

3 changed files with 42 additions and 35 deletions

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include/linux/leds.h

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