- struct snd_ctl_elem_id id;
- unsigned int count;
- unsigned int idx;
- struct snd_kcontrol *old;
- int ret;
-
- if (!kcontrol)
- return -EINVAL;
- if (snd_BUG_ON(!card || !kcontrol->info)) {
- ret = -EINVAL;
- goto error;
- }
- id = kcontrol->id;
- down_write(&card->controls_rwsem);
- old = snd_ctl_find_id(card, &id);
- if (!old) {
- if (add_on_replace)
- goto add;
- up_write(&card->controls_rwsem);
- ret = -EINVAL;
- goto error;
- }
- ret = snd_ctl_remove(card, old);
- if (ret < 0) {
- up_write(&card->controls_rwsem);
- goto error;
- }
-add:
- if (snd_ctl_find_hole(card, kcontrol->count) < 0) {
- up_write(&card->controls_rwsem);
- ret = -ENOMEM;
- goto error;
- }
- list_add_tail(&kcontrol->list, &card->controls);
- card->controls_count += kcontrol->count;
- kcontrol->id.numid = card->last_numid + 1;
- card->last_numid += kcontrol->count;
- id = kcontrol->id;
- count = kcontrol->count;
- up_write(&card->controls_rwsem);
- for (idx = 0; idx < 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 ret;
+ return snd_ctl_add_replace(card, kcontrol,
+ add_on_replace ? CTL_ADD_ON_REPLACE : CTL_REPLACE);