From: Jelle Foks <jelle@foks.8m.com>
Date: Sat, 18 Nov 2006 18:47:11 +0000 (-0300)
Subject: V4L/DVB (4838): Fix cx88-blackbird null pointer
X-Git-Tag: v2.6.20-rc1~145^2~5^2~84
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=49c6b46a05ade5e1c572431844b77755527a152c;p=linux-2.6

V4L/DVB (4838): Fix cx88-blackbird null pointer

Allows 'debug=1' for cx88-blackbird module (dev needs to be valid for
dprintk). Fixes a null-pointer dereference when using debug=1.

Signed-off-by: Jelle Foks <jelle@foks.8m.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
---

diff --git a/drivers/media/video/cx88/cx88-blackbird.c b/drivers/media/video/cx88/cx88-blackbird.c
index 0037188d77..0cf0360588 100644
--- a/drivers/media/video/cx88/cx88-blackbird.c
+++ b/drivers/media/video/cx88/cx88-blackbird.c
@@ -942,9 +942,10 @@ static int mpeg_open(struct inode *inode, struct file *file)
 	struct cx8802_driver *drv = NULL;
 	int err;
 
+       dev = cx8802_get_device(inode);
+
 	dprintk( 1, "%s\n", __FUNCTION__);
 
-	dev = cx8802_get_device(inode);
 	if (dev == NULL)
 		return -ENODEV;