QH_STATE_UNLINK_WAIT
case QH_STATE_UNLINK_WAIT:
case QH_STATE_UNLINK_WAIT:
case QH_STATE_UNLINK_WAIT:
case QH_STATE_UNLINK_WAIT:
qh->qh_state = QH_STATE_UNLINK_WAIT;
&& qh->qh_state != QH_STATE_UNLINK_WAIT));
qh->qh_state = QH_STATE_UNLINK_WAIT;