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ALSA: opl3: Use guard() for mutex locks

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Replace the manual mutex lock/unlock pairs with guard() for code
simplification.

Only code refactoring, and no behavior change.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250829150026.6379-4-tiwai@suse.de
This commit is contained in:
Takashi Iwai
2025-08-29 17:00:14 +02:00
parent 1ef2cb6b29
commit 6a6da5ca97
1 changed files with 7 additions and 9 deletions
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16
sound/drivers/opl3/opl3_seq.c
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@@ -40,13 +40,11 @@ int snd_opl3_synth_setup(struct snd_opl3 * opl3)
int idx;
struct snd_hwdep *hwdep = opl3->hwdep;
mutex_lock(&hwdep->open_mutex);
if (hwdep->used) {
mutex_unlock(&hwdep->open_mutex);
return -EBUSY;
scoped_guard(mutex, &hwdep->open_mutex) {
if (hwdep->used)
return -EBUSY;
hwdep->used++;
}
hwdep->used++;
mutex_unlock(&hwdep->open_mutex);
snd_opl3_reset(opl3);
@@ -81,9 +79,9 @@ void snd_opl3_synth_cleanup(struct snd_opl3 * opl3)
snd_opl3_reset(opl3);
hwdep = opl3->hwdep;
mutex_lock(&hwdep->open_mutex);
hwdep->used--;
mutex_unlock(&hwdep->open_mutex);
scoped_guard(mutex, &hwdep->open_mutex) {
hwdep->used--;
}
wake_up(&hwdep->open_wait);
}