ieee1394: Remove unnecessary casts of private_data

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
diff --git a/drivers/ieee1394/dv1394.c b/drivers/ieee1394/dv1394.c
index f8fcbd0..c5a031b 100644
--- a/drivers/ieee1394/dv1394.c
+++ b/drivers/ieee1394/dv1394.c
@@ -172,7 +172,7 @@
 
 static inline struct video_card* file_to_video_card(struct file *file)
 {
-	return (struct video_card*) file->private_data;
+	return file->private_data;
 }
 
 /*** FRAME METHODS *********************************************************/
@@ -1783,7 +1783,7 @@
 	struct video_card *video = NULL;
 
 	if (file->private_data) {
-		video = (struct video_card*) file->private_data;
+		video = file->private_data;
 
 	} else {
 		/* look up the card by ID */