diff options
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/core/control.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/sound/core/control.c b/sound/core/control.c index 9742bdb..5747453 100644 --- a/sound/core/control.c +++ b/sound/core/control.c @@ -309,28 +309,29 @@ int snd_ctl_add(struct snd_card *card, struct snd_kcontrol *kcontrol) { struct snd_ctl_elem_id id; unsigned int idx; + int err = -EINVAL; - snd_assert(card != NULL, return -EINVAL); if (! kcontrol) - return -EINVAL; - snd_assert(kcontrol->info != NULL, return -EINVAL); + return err; + snd_assert(card != NULL, goto error); + snd_assert(kcontrol->info != NULL, goto error); id = kcontrol->id; down_write(&card->controls_rwsem); if (snd_ctl_find_id(card, &id)) { up_write(&card->controls_rwsem); - snd_ctl_free_one(kcontrol); snd_printd(KERN_ERR "control %i:%i:%i:%s:%i is already present\n", id.iface, id.device, id.subdevice, id.name, id.index); - return -EBUSY; + err = -EBUSY; + goto error; } if (snd_ctl_find_hole(card, kcontrol->count) < 0) { up_write(&card->controls_rwsem); - snd_ctl_free_one(kcontrol); - return -ENOMEM; + err = -ENOMEM; + goto error; } list_add_tail(&kcontrol->list, &card->controls); card->controls_count += kcontrol->count; @@ -340,6 +341,10 @@ int snd_ctl_add(struct snd_card *card, struct snd_kcontrol *kcontrol) for (idx = 0; idx < kcontrol->count; idx++, id.index++, id.numid++) snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_ADD, &id); return 0; + + error: + snd_ctl_free_one(kcontrol); + return err; } /** |