{
struct snd_card *card;
struct list_head *p;
+ bool was_shutdown;
if (chip == (void *)-1L)
return;
card = chip->card;
down_write(&chip->shutdown_rwsem);
+ was_shutdown = chip->shutdown;
chip->shutdown = 1;
up_write(&chip->shutdown_rwsem);
mutex_lock(®ister_mutex);
- chip->num_interfaces--;
- if (chip->num_interfaces <= 0) {
+ if (!was_shutdown) {
struct snd_usb_endpoint *ep;
snd_card_disconnect(card);
list_for_each(p, &chip->mixer_list) {
snd_usb_mixer_disconnect(p);
}
+ }
+
+ chip->num_interfaces--;
+ if (chip->num_interfaces <= 0) {
usb_chip[chip->index] = NULL;
mutex_unlock(®ister_mutex);
snd_card_free_when_closed(card);