diff --git a/Documentation/video4linux/v4l2-pci-skeleton.c b/Documentation/video4linux/v4l2-pci-skeleton.c
index 53dd346586f6cec197a760b0ad1d82d7c9820305..46904fe49609372eee7b6e16474fc2ac5fa1f5c1 100644
--- a/Documentation/video4linux/v4l2-pci-skeleton.c
+++ b/Documentation/video4linux/v4l2-pci-skeleton.c
@@ -174,7 +174,7 @@ static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt,
 		 * You cannot use read() with FIELD_ALTERNATE since the field
 		 * information (TOP/BOTTOM) cannot be passed back to the user.
 		 */
-		if (vb2_fileio_is_active(q))
+		if (vb2_fileio_is_active(vq))
 			return -EINVAL;
 		skel->field = V4L2_FIELD_TOP;
 	}