Index: if_xl.c
===================================================================
RCS file: /home/ncvs/src/sys/pci/if_xl.c,v
retrieving revision 1.129
diff -p -u -r1.129 if_xl.c
--- if_xl.c	19 Feb 2003 18:33:29 -0000	1.129
+++ if_xl.c	22 Feb 2003 00:14:00 -0000
@@ -1940,13 +1940,9 @@ xl_newbuf(sc, c)
 	u_int32_t		baddr;
 
 	MGETHDR(m_new, M_DONTWAIT, MT_DATA);
-	if (m_new == NULL)
-		return(ENOBUFS);
-
-	MCLGET(m_new, M_DONTWAIT);
-	if (!(m_new->m_flags & M_EXT)) {
-		m_freem(m_new);
-		return(ENOBUFS);
+	m_new = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
+	if (m_new == NULL) {
+		return (ENOBUFS);
 	}
 
 	m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
@@ -2154,11 +2150,14 @@ xl_txeof(sc)
 			break;
 
 		sc->xl_cdata.xl_tx_head = cur_tx->xl_next;
-		bus_dmamap_sync(sc->xl_mtag, cur_tx->xl_map,
-		    BUS_DMASYNC_POSTWRITE);
-		bus_dmamap_unload(sc->xl_mtag, cur_tx->xl_map);
-		m_freem(cur_tx->xl_mbuf);
-		cur_tx->xl_mbuf = NULL;
+		if (cur_tx->xl_mbuf != NULL) {
+			bus_dmamap_sync(sc->xl_mtag, cur_tx->xl_map,
+			    BUS_DMASYNC_POSTWRITE);
+			bus_dmamap_unload(sc->xl_mtag, cur_tx->xl_map);
+			m_freem(cur_tx->xl_mbuf);
+			cur_tx->xl_mbuf = NULL;
+		}
+
 		ifp->if_opackets++;
 
 		cur_tx->xl_next = sc->xl_cdata.xl_tx_free;