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Input: pwm-beeper - use guard notation when acquiring spinlock

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Using guard notation makes the code more compact and error handling
more robust by ensuring that locks are released in all code paths
when control leaves critical section.

Reviewed-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Link: https://lore.kernel.org/r/20240904044914.1049280-1-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Dmitry Torokhov
2024-09-03 21:49:12 -07:00
parent c684921854
commit 5bd3ade121
1 changed files with 6 additions and 6 deletions
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12
drivers/input/misc/pwm-beeper.c
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@@ -203,9 +203,9 @@ static int pwm_beeper_suspend(struct device *dev)
* beeper->suspended, but to ensure that pwm_beeper_event
* does not re-submit work once flag is set.
*/
spin_lock_irq(&beeper->input->event_lock);
beeper->suspended = true;
spin_unlock_irq(&beeper->input->event_lock);
scoped_guard(spinlock_irq, &beeper->input->event_lock) {
beeper->suspended = true;
}
pwm_beeper_stop(beeper);
@@ -216,9 +216,9 @@ static int pwm_beeper_resume(struct device *dev)
{
struct pwm_beeper *beeper = dev_get_drvdata(dev);
spin_lock_irq(&beeper->input->event_lock);
beeper->suspended = false;
spin_unlock_irq(&beeper->input->event_lock);
scoped_guard(spinlock_irq, &beeper->input->event_lock) {
beeper->suspended = false;
}
/* Let worker figure out if we should resume beeping */
schedule_work(&beeper->work);