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>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/media/video/cx88/cx88-blackbird.c b/drivers/media/video/cx88/cx88-blackbird.c
index 0037188d77d4..0cf0360588e6 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;