iop_initiator_unregister
iop_initiator_unregister(iop, &sc->sc_ii);
void iop_initiator_unregister(struct iop_softc *, struct iop_initiator *);
iop_initiator_unregister(iop, &sc->sc_eventii);
iop_initiator_unregister(iop, &sc->sc_ii);