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authorSteven Toth <stoth@hauppauge.com>2007-09-07 03:48:35 +0200
committerMauro Carvalho Chehab <mchehab@infradead.org>2007-09-14 18:13:42 +0200
commit48200baeab95fd39a7f4c4f3536c7142a64ac335 (patch)
treec08fb3e4dca3d62b6cd1559797f0b1f05b440ad5 /drivers
parentV4L/DVB (6173a): Documentation: Remove reference to dead "cpia_pp=" boot-time... (diff)
downloadlinux-48200baeab95fd39a7f4c4f3536c7142a64ac335.tar.xz
linux-48200baeab95fd39a7f4c4f3536c7142a64ac335.zip
V4L/DVB (6188): Avoid a NULL pointer dereference during mpeg_open()
Bug: With a hardware encoder board installed as cx88[1] and a non-encoder boards installed as cx88[0], an OOPS is generated during cx8802_get_device() called from mpeg_open(). Signed-off-by: Steven Toth <stoth@hauppauge.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/media/video/cx88/cx88-mpeg.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/video/cx88/cx88-mpeg.c b/drivers/media/video/cx88/cx88-mpeg.c
index 317a2a3f9cc1..da7a6b591a67 100644
--- a/drivers/media/video/cx88/cx88-mpeg.c
+++ b/drivers/media/video/cx88/cx88-mpeg.c
@@ -580,7 +580,7 @@ struct cx8802_dev * cx8802_get_device(struct inode *inode)
list_for_each(list,&cx8802_devlist) {
h = list_entry(list, struct cx8802_dev, devlist);
- if (h->mpeg_dev->minor == minor)
+ if (h->mpeg_dev && h->mpeg_dev->minor == minor)
return h;
}