atu_newbuf        254 dev/usb/if_atu.c int	atu_newbuf(struct atu_softc *, struct atu_chain *, struct mbuf *);
atu_newbuf       1591 dev/usb/if_atu.c 			if (atu_newbuf(sc, c, NULL) == ENOBUFS) /* XXX free? */
atu_newbuf       1735 dev/usb/if_atu.c 	if (atu_newbuf(sc, c, NULL) == ENOBUFS) {