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authorSteven Toth <stoth@hauppauge.com>2007-09-15 12:28:26 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2007-09-26 10:54:38 -0700
commit5f9ce2fc33a51fb6ff9e6e484d4673329c935aba (patch)
tree9adc7fff950f2779bbdabc9f34768339458fabe0
parent1d82390f570340d517c4e8f2b7a63f8dfeb9a4ff (diff)
V4L: cx88: Avoid a NULL pointer dereference during mpeg_open()
(cherry picked from commit 48200baeab95fd39a7f4c4f3536c7142a64ac335) [PATCH] V4L: cx88: 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> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-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 543b05ebc0e7..c36e2b7172e9 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;
}