From 48200baeab95fd39a7f4c4f3536c7142a64ac335 Mon Sep 17 00:00:00 2001 From: Steven Toth Date: Thu, 6 Sep 2007 22:48:35 -0300 Subject: [PATCH] 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 Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx88/cx88-mpeg.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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; }