Index: dev/mge/if_mge.c
===================================================================
--- dev/mge/if_mge.c	(revision 267603)
+++ dev/mge/if_mge.c	(working copy)
@@ -1437,12 +1437,6 @@
 
 	ifp = sc->ifp;
 
-	/* Check for free descriptors */
-	if (sc->tx_desc_used_count + 1 >= MGE_TX_DESC_NUM) {
-		/* No free descriptors */
-		return (-1);
-	}
-
 	/* Fetch unused map */
 	desc_no = sc->tx_desc_curr;
 	dw = &sc->mge_tx_desc[desc_no];
@@ -1451,9 +1445,16 @@
 	/* Create mapping in DMA memory */
 	error = bus_dmamap_load_mbuf_sg(sc->mge_tx_dtag, mapp, m0, segs, &nsegs,
 	    BUS_DMA_NOWAIT);
-	if (error != 0 || nsegs != 1 ) {
+	if (error != 0) {
+		m_freem(m0);
+		return (error);
+	}
+
+	/* Only one segment is supported. */
+	if (nsegs != 1) {
 		bus_dmamap_unload(sc->mge_tx_dtag, mapp);
-		return ((error != 0) ? error : -1);
+		m_freem(m0);
+		return (-1);
 	}
 
 	bus_dmamap_sync(sc->mge_tx_dtag, mapp, BUS_DMASYNC_PREWRITE);
@@ -1557,11 +1558,16 @@
 		if (mtmp)
 			m0 = mtmp;
 
-		if (mge_encap(sc, m0)) {
+		/* Check for free descriptors */
+		if (sc->tx_desc_used_count + 1 >= MGE_TX_DESC_NUM) {
 			IF_PREPEND(&ifp->if_snd, m0);
 			ifp->if_drv_flags |= IFF_DRV_OACTIVE;
 			break;
 		}
+
+		if (mge_encap(sc, m0) != 0)
+			break;
+
 		queued++;
 		BPF_MTAP(ifp, m0);
 	}