[media] omap3isp: queue: fail QBUF if user buffer is too small

Add buffer length check to sanity checks for USERPTR QBUF.
Signed-off-by: NMichael Jones <michael.jones@matrix-vision.de>
Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/omap3isp/ispqueue.c

@@ -867,6 +867,10 @@ int omap3isp_video_queue_qbuf(struct isp_video_queue *queue,
 	if (buf->state != ISP_BUF_STATE_IDLE)
 		goto done;
 
+	if (vbuf->memory == V4L2_MEMORY_USERPTR &&
+	    vbuf->length < buf->vbuf.length)
+		goto done;
+
 	if (vbuf->memory == V4L2_MEMORY_USERPTR &&
 	    vbuf->m.userptr != buf->vbuf.m.userptr) {
 		isp_video_buffer_cleanup(buf);