Simplify vio_encap() a bit.

From brad@

diff --git a/sys/dev/pci/if_vio.c b/sys/dev/pci/if_vio.c
index 4a4c090..120b260 100644 (file)
--- a/sys/dev/pci/if_vio.c
+++ b/sys/dev/pci/if_vio.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: if_vio.c,v 1.26 2015/04/07 19:31:42 sf Exp $  */
+/*     $OpenBSD: if_vio.c,v 1.27 2015/04/18 14:38:38 sf Exp $  */
 
 /*
  * Copyright (c) 2012 Stefan Fritsch, Alexander Fiveg.
@@ -1152,19 +1152,17 @@ vio_encap(struct vio_softc *sc, int slot, struct mbuf *m)
        case 0:
                break;
        case EFBIG:
-               if ((r = m_defrag(m, M_DONTWAIT)) == 0 &&
-                   (r = bus_dmamap_load_mbuf(vsc->sc_dmat, dmap, m,
-                    BUS_DMA_WRITE|BUS_DMA_NOWAIT)) == 0)
+               if (m_defrag(m, M_DONTWAIT) == 0 &&
+                   bus_dmamap_load_mbuf(vsc->sc_dmat, dmap, m,
+                   BUS_DMA_WRITE|BUS_DMA_NOWAIT) == 0)
                        break;
 
                /* FALLTHROUGH */
        default:
-               printf("%s: tx dmamap load error %d\n", sc->sc_dev.dv_xname,
-                   r);
                return ENOBUFS;
        }
        sc->sc_tx_mbufs[slot] = m;
-       return r;
+       return 0;
 }
 
 /* free all the mbufs already put on vq; called from if_stop(disable) */