diff --git a/drivers/media/usb/uvc/uvc_video.c b/drivers/media/usb/uvc/uvc_video.c index d1510c1230d9..40f1a1a5ea28 100644 --- a/drivers/media/usb/uvc/uvc_video.c +++ b/drivers/media/usb/uvc/uvc_video.c @@ -1309,12 +1309,6 @@ static void uvc_video_decode_meta(struct uvc_streaming *stream, if (!meta_buf || length == 2) return; - if (meta_buf->length - meta_buf->bytesused < - length + sizeof(meta->ns) + sizeof(meta->sof)) { - meta_buf->error = 1; - return; - } - has_pts = mem[1] & UVC_STREAM_PTS; has_scr = mem[1] & UVC_STREAM_SCR; @@ -1335,6 +1329,12 @@ static void uvc_video_decode_meta(struct uvc_streaming *stream, !memcmp(scr, stream->clock.last_scr, 6))) return; + if (meta_buf->length - meta_buf->bytesused < + length + sizeof(meta->ns) + sizeof(meta->sof)) { + meta_buf->error = 1; + return; + } + meta = (struct uvc_meta_buf *)((u8 *)meta_buf->mem + meta_buf->bytesused); local_irq_save(flags); time = uvc_video_get_time();