Input: pwm-beeper - fix race when suspending

Usually userspace sends SND_BELL and SND_TONE events, and by the time
pwm_beeper_suspend() runs userpsace is already frozen, but theoretically
in-kernel users may send these events too, and that may cause
pwm_beeper_event() scheduling another work after we canceled it.

Let's introduce a "suspended" flag and check it in pwm_beeper_event() to
avoid this race.

Reviewed-by: Thierry Reding <[email protected]>
Tested-by: David Lechner <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>

0 files changed, 0 insertions, 0 deletions