[src/trunk]: src/sys/dev/pci agpopen(): check for NULL softc before dereferen...

[thorpej <thorpej%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/d94bd13b80c9
branches:  trunk
changeset: 515003:d94bd13b80c9
user:      thorpej <thorpej%NetBSD.org@localhost>
date:      Sat Sep 15 18:03:35 2001 +0000

description:
agpopen(): check for NULL softc before dereferencing it.

diffstat:

 sys/dev/pci/agp.c |  5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diffs (19 lines):

diff -r c0e367291da0 -r d94bd13b80c9 sys/dev/pci/agp.c
--- a/sys/dev/pci/agp.c Sat Sep 15 17:51:02 2001 +0000
+++ b/sys/dev/pci/agp.c Sat Sep 15 18:03:35 2001 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: agp.c,v 1.8 2001/09/15 13:01:44 drochner Exp $ */
+/*     $NetBSD: agp.c,v 1.9 2001/09/15 18:03:35 thorpej Exp $  */
 
 /*-
  * Copyright (c) 2000 Doug Rabson
@@ -766,6 +766,9 @@
 {
        struct agp_softc *sc = device_lookup(&agp_cd, AGPUNIT(dev));
 
+       if (sc == NULL)
+               return ENXIO;
+
        if (sc->as_chipc == NULL)
                return ENXIO;