From fbcbbf2ebe5cc58aa45d4baf063c46b7f3b106d0 Mon Sep 17 00:00:00 2001 From: Ming Qian Date: Mon, 21 Apr 2025 15:06:12 +0800 Subject: [PATCH] media: imx-jpeg: Drop the first error frames [ Upstream commit d52b9b7e2f10d22a49468128540533e8d76910cd ] When an output buffer contains error frame header, v4l2_jpeg_parse_header() will return error, then driver will mark this buffer and a capture buffer done with error flag in device_run(). But if the error occurs in the first frames, before setup the capture queue, there is no chance to schedule device_run(), and there may be no capture to mark error. So we need to drop this buffer with error flag, and make the decoding can continue. Fixes: 2db16c6ed72c ("media: imx-jpeg: Add V4L2 driver for i.MX8 JPEG Encoder/Decoder") Cc: stable@vger.kernel.org Signed-off-by: Ming Qian Reviewed-by: Nicolas Dufresne Signed-off-by: Nicolas Dufresne Signed-off-by: Hans Verkuil Signed-off-by: Sasha Levin --- drivers/media/platform/imx-jpeg/mxc-jpeg.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/imx-jpeg/mxc-jpeg.c b/drivers/media/platform/imx-jpeg/mxc-jpeg.c index 059e45aa03b7f..2ab03444f742a 100644 --- a/drivers/media/platform/imx-jpeg/mxc-jpeg.c +++ b/drivers/media/platform/imx-jpeg/mxc-jpeg.c @@ -1450,9 +1450,19 @@ static void mxc_jpeg_buf_queue(struct vb2_buffer *vb) jpeg_src_buf = vb2_to_mxc_buf(vb); jpeg_src_buf->jpeg_parse_error = false; ret = mxc_jpeg_parse(ctx, vb); - if (ret) + if (ret) { jpeg_src_buf->jpeg_parse_error = true; + /* + * if the capture queue is not setup, the device_run() won't be scheduled, + * need to drop the error buffer, so that the decoding can continue + */ + if (!vb2_is_streaming(v4l2_m2m_get_dst_vq(ctx->fh.m2m_ctx))) { + v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR); + return; + } + } + end: v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf); } -- 2.47.3