@@ -35,12 +35,12 @@ static enum hrtimer_restart snd_hrtimer_callback(struct hrtimer *hrt)
unsigned long ticks;
enum hrtimer_restart ret = HRTIMER_NORESTART;
- spin_lock(&t->lock);
- if (!t->running)
- goto out; /* fast path */
- stime->in_callback = true;
- ticks = t->sticks;
- spin_unlock(&t->lock);
+ scoped_guard(spinlock, &t->lock) {
+ if (!t->running)
+ return HRTIMER_NORESTART; /* fast path */
+ stime->in_callback = true;
+ ticks = t->sticks;
+ }
/* calculate the drift */
delta = ktime_sub(hrt->base->get_time(), hrtimer_get_expires(hrt));
@@ -49,15 +49,13 @@ static enum hrtimer_restart snd_hrtimer_callback(struct hrtimer *hrt)
snd_timer_interrupt(stime->timer, ticks);
- spin_lock(&t->lock);
+ guard(spinlock)(&t->lock);
if (t->running) {
hrtimer_add_expires_ns(hrt, t->sticks * resolution);
ret = HRTIMER_RESTART;
}
stime->in_callback = false;
- out:
- spin_unlock(&t->lock);
return ret;
}
@@ -80,10 +78,10 @@ static int snd_hrtimer_close(struct snd_timer *t)
struct snd_hrtimer *stime = t->private_data;
if (stime) {
- spin_lock_irq(&t->lock);
- t->running = 0; /* just to be sure */
- stime->in_callback = 1; /* skip start/stop */
- spin_unlock_irq(&t->lock);
+ scoped_guard(spinlock_irq, &t->lock) {
+ t->running = 0; /* just to be sure */
+ stime->in_callback = 1; /* skip start/stop */
+ }
hrtimer_cancel(&stime->hrt);
kfree(stime);
We can simplify the code gracefully with new guard() macro and co for automatic cleanup of locks. Only the code refactoring, and no functional changes. Signed-off-by: Takashi Iwai <tiwai@suse.de> --- sound/core/hrtimer.c | 24 +++++++++++------------- 1 file changed, 11 insertions(+), 13 deletions(-)