V4L/DVB: vpif_cap: don't ignore return code of videobuf_poll_stream()

Signed-off-by: Mats Randgaard <mats.randgaard@tandberg.com>
Signed-off-by: Hans Verkuil <hans.verkuil@tandberg.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/davinci/vpif_capture.c

@@ -731,16 +731,14 @@ static int vpif_mmap(struct file *filep, struct vm_area_struct *vma)
  */
 static unsigned int vpif_poll(struct file *filep, poll_table * wait)
 {
-	int err = 0;
 	struct vpif_fh *fh = filep->private_data;
 	struct channel_obj *channel = fh->channel;
 	struct common_obj *common = &(channel->common[VPIF_VIDEO_INDEX]);
 
 	vpif_dbg(2, debug, "vpif_poll\n");
 
 	if (common->started)
-		err = videobuf_poll_stream(filep, &common->buffer_queue, wait);
-
+		return videobuf_poll_stream(filep, &common->buffer_queue, wait);
 	return 0;
 }