snd_seq_prioq_delete
void snd_seq_prioq_delete(struct snd_seq_prioq **fifo);
snd_seq_prioq_delete(&q->tickq);
snd_seq_prioq_delete(&q->timeq);
snd_seq_prioq_delete(&q->tickq);
snd_seq_prioq_delete(&q->timeq);