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authorTheo de Raadt <deraadt@cvs.openbsd.org>2007-01-02 22:22:20 +0000
committerTheo de Raadt <deraadt@cvs.openbsd.org>2007-01-02 22:22:20 +0000
commiteab55a528a14418875c8a18a7e289579a5630951 (patch)
tree46fc100e430dd465514e5545caec6279578509c4 /sys
parent7a44d56d9a0e095c28c00a3fc3040e901017da43 (diff)
do not permit agp_ioctl if the methods are invalid; ok miod
Diffstat (limited to 'sys')
-rw-r--r--sys/dev/pci/agp.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/sys/dev/pci/agp.c b/sys/dev/pci/agp.c
index 91d764a933f..1d3dde15a28 100644
--- a/sys/dev/pci/agp.c
+++ b/sys/dev/pci/agp.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: agp.c,v 1.2 2006/12/30 19:15:30 miod Exp $ */
+/* $OpenBSD: agp.c,v 1.3 2007/01/02 22:22:19 deraadt Exp $ */
/*-
* Copyright (c) 2000 Doug Rabson
* All rights reserved.
@@ -146,6 +146,9 @@ agp_ioctl(void *v, u_long cmd, caddr_t addr, int flag, struct proc *pb)
vsize_t size;
int error = 0;
+ if (sc->sc_methods == NULL)
+ return (ENXIO);
+
switch (cmd) {
case AGPIOC_INFO:
if (!sc->sc_chipc)