klist_init_mutex
klist_init_mutex(&sc->mix_klist, &audio_lock);
klist_init_mutex(&buf->klist, &audio_lock);
klist_init_mutex(&hotplug_klist, &hotplug_mtx);
klist_init_mutex(&sc->inbuf.klist, &audio_lock);
klist_init_mutex(&sc->outbuf.klist, &audio_lock);
klist_init_mutex(&sc->sc_rklist, &sc->sc_mtx);
klist_init_mutex(&sc->sc_klist, &sc->sc_state_mtx);
klist_init_mutex(&ev->ws_klist, &ev->ws_mtx);
klist_init_mutex(&kq->kq_klist, &kqueue_klist_lock);
klist_init_mutex(&pr->ps_klist, &pr->ps_mtx);
klist_init_mutex(&logsoftc.sc_klist, &log_kq_mtx);
klist_init_mutex(&so->so_rcv.sb_klist, &so->so_rcv.sb_mtx);
klist_init_mutex(&so->so_snd.sb_klist, &so->so_snd.sb_mtx);
klist_init_mutex(&bd->bd_klist, &bd->bd_mtx);
klist_init_mutex(&sc->sc_rklist, &sc->sc_mtx);
klist_init_mutex(&sc->sc_wklist, &sc->sc_mtx);
klist_init_mutex(&pxd->pxd_rklist, &pxd->pxd_mtx);
klist_init_mutex(&pxd->pxd_wklist, &pxd->pxd_mtx);
klist_init_mutex(&sc->sc_rklist, &sc->sc_mtx);
klist_init_mutex(&sc->sc_wklist, &sc->sc_mtx);
extern void klist_init_mutex(struct klist *, struct mutex *);