+ struct amusbss_softc *sc = (struct amusbss_softc *) self;
+
+ bus_space_unmap(sc->sc_iot, sc->sc_ioh, sc->sc_ios);
+
+ if (sc->sc_ioh_dma_ctl)
+ bus_space_unmap(sc->sc_iot, sc->sc_ioh_dma_ctl, sc->sc_ios_dma_ctl);
+ if (sc->sc_ioh_dma_sched)
+ bus_space_unmap(sc->sc_iot, sc->sc_ioh_dma_sched, sc->sc_ios_dma_sched);
+ if (sc->sc_ioh_queue)
+ bus_space_unmap(sc->sc_iot, sc->sc_ioh_queue, sc->sc_ios_queue);
+
+ return 0;