diff options
Diffstat (limited to 'sound/core/control.c')
| -rw-r--r-- | sound/core/control.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sound/core/control.c b/sound/core/control.c index 8386b53acdcd..a41d19c46df2 100644 --- a/sound/core/control.c +++ b/sound/core/control.c @@ -769,11 +769,12 @@ EXPORT_SYMBOL(snd_ctl_rename_id); * * Renames the specified control on the card to the new name. * - * Make sure to take the control write lock - down_write(&card->controls_rwsem). + * Note that this function takes card->controls_rwsem lock internally. */ void snd_ctl_rename(struct snd_card *card, struct snd_kcontrol *kctl, const char *name) { + down_write(&card->controls_rwsem); remove_hash_entries(card, kctl); if (strscpy(kctl->id.name, name, sizeof(kctl->id.name)) < 0) @@ -781,6 +782,7 @@ void snd_ctl_rename(struct snd_card *card, struct snd_kcontrol *kctl, name, kctl->id.name); add_hash_entries(card, kctl); + up_write(&card->controls_rwsem); } EXPORT_SYMBOL(snd_ctl_rename); |