V4L/DVB (5198): Cafe_ccic.c fix warning

Quiet a spurious gcc warning.
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/video/cafe_ccic.c

@@ -1195,7 +1195,7 @@ static int cafe_vidioc_reqbufs(struct file *filp, void *priv,
 		struct v4l2_requestbuffers *req)
 {
 	struct cafe_camera *cam = filp->private_data;
-	int ret;
+	int ret = 0;  /* Silence warning */
 
 	/*
 	 * Make sure it's something we can do.  User pointers could be