diff options
Diffstat (limited to 'sound/drivers/opl4/opl4_proc.c')
| -rw-r--r-- | sound/drivers/opl4/opl4_proc.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/sound/drivers/opl4/opl4_proc.c b/sound/drivers/opl4/opl4_proc.c index f2149091e10a..fd0ba4704d9f 100644 --- a/sound/drivers/opl4/opl4_proc.c +++ b/sound/drivers/opl4/opl4_proc.c @@ -14,13 +14,10 @@ static int snd_opl4_mem_proc_open(struct snd_info_entry *entry, { struct snd_opl4 *opl4 = entry->private_data; - mutex_lock(&opl4->access_mutex); - if (opl4->memory_access) { - mutex_unlock(&opl4->access_mutex); + guard(mutex)(&opl4->access_mutex); + if (opl4->memory_access) return -EBUSY; - } opl4->memory_access++; - mutex_unlock(&opl4->access_mutex); return 0; } @@ -29,9 +26,8 @@ static int snd_opl4_mem_proc_release(struct snd_info_entry *entry, { struct snd_opl4 *opl4 = entry->private_data; - mutex_lock(&opl4->access_mutex); + guard(mutex)(&opl4->access_mutex); opl4->memory_access--; - mutex_unlock(&opl4->access_mutex); return 0; } |