usba_req_wrapper_alloc
((wrp = usba_req_wrapper_alloc(dip, sizeof (*ctrl_req), flags)) !=
((wrp = usba_req_wrapper_alloc(dip, sizeof (*bulk_req), flags)) !=
(wrp = usba_req_wrapper_alloc(dip, sizeof (*intr_req), flags)) !=
if ((wrp = usba_req_wrapper_alloc(dip, length, flags)) !=