snd_card_free_when_closed — Disconnect the card, free it later eventually
int snd_card_free_when_closed ( | struct snd_card * card); |
Unlike snd_card_free, this function doesn't try to release the card
resource immediately, but tries to disconnect at first. When the card
is still in use, the function returns before freeing the resources.
The card resources will be freed when the refcount gets to zero.