diff options
Diffstat (limited to 'sys/dev/ic/acx.c')
| -rw-r--r-- | sys/dev/ic/acx.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/sys/dev/ic/acx.c b/sys/dev/ic/acx.c index 6fd387ebf6d..a90b5d54dfb 100644 --- a/sys/dev/ic/acx.c +++ b/sys/dev/ic/acx.c @@ -1,4 +1,4 @@ -/* $OpenBSD: acx.c,v 1.68 2007/03/16 11:06:39 claudio Exp $ */ +/* $OpenBSD: acx.c,v 1.69 2007/03/19 23:28:23 claudio Exp $ */ /* * Copyright (c) 2006 Jonathan Gray <jsg@openbsd.org> @@ -2105,7 +2105,8 @@ acx_newbuf(struct acx_softc *sc, struct acx_rxbuf *rb, int wait) } /* Unload originally mapped mbuf */ - bus_dmamap_unload(sc->sc_dmat, rb->rb_mbuf_dmamap); + if (rb->rb_mbuf != NULL) + bus_dmamap_unload(sc->sc_dmat, rb->rb_mbuf_dmamap); /* Swap this dmamap with tmp dmamap */ map = rb->rb_mbuf_dmamap; |