From dfc1648c576719b5a2701805aab1e208789d5969 Mon Sep 17 00:00:00 2001 From: Baoyou Xie Date: Wed, 6 Sep 2017 22:59:48 -0400 Subject: [PATCH] media: uvcvideo: Mark buffer error where overflow Some cameras post inaccurate frame where next frame data overlap it. this results in screen flicker, and it need to be prevented. So this patch marks the buffer error to discard the frame where buffer overflow. Signed-off-by: Baoyou Xie Reviewed-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab --- drivers/media/usb/uvc/uvc_video.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/media/usb/uvc/uvc_video.c b/drivers/media/usb/uvc/uvc_video.c index f4ace6352520..73cd44e8bd81 100644 --- a/drivers/media/usb/uvc/uvc_video.c +++ b/drivers/media/usb/uvc/uvc_video.c @@ -1077,6 +1077,7 @@ static void uvc_video_decode_data(struct uvc_streaming *stream, /* Complete the current frame if the buffer size was exceeded. */ if (len > maxlen) { uvc_trace(UVC_TRACE_FRAME, "Frame complete (overflow).\n"); + buf->error = 1; buf->state = UVC_BUF_STATE_READY; } }