--- sys/dev/sis/if_sis.c	2008-11-22 14:39:44.000000000 +0800
+++ /var/current/mysrc/sys/dev/sis/if_sis.c	2008-11-25 16:44:32.000000000 +0800
@@ -1746,9 +1746,6 @@
 		}
 	}
 
-	if (m != NULL)
-		return(ENOBUFS);
-
 	sc->sis_tx_list[cur].sis_mbuf = *m_head;
 	sc->sis_tx_list[cur].sis_ctl &= ~SIS_CMDSTS_MORE;
 	sc->sis_tx_list[*txidx].sis_ctl |= SIS_CMDSTS_OWN;