media: coda: jpeg: improve header parse error message

If JPEG header parsing fails, output a single message instead of two
messages that say the same thing.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/platform/chips-media/coda-common.c

@@ -2000,12 +2000,8 @@ static int coda_start_streaming(struct vb2_queue *q, unsigned int count)
 		if (q_data_src->fourcc == V4L2_PIX_FMT_JPEG) {
 			buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
 			ret = coda_jpeg_decode_header(ctx, &buf->vb2_buf);
-			if (ret < 0) {
-				v4l2_err(v4l2_dev,
-					 "failed to decode JPEG header: %d\n",
-					 ret);
+			if (ret < 0)
 				goto err;
-			}
 
 			q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
 			q_data_dst->width = round_up(q_data_src->width, 16);

drivers/media/platform/chips-media/coda-jpeg.c

@@ -283,7 +283,8 @@ int coda_jpeg_decode_header(struct coda_ctx *ctx, struct vb2_buffer *vb)
 
 	ret = v4l2_jpeg_parse_header(buf, len, &header);
 	if (ret < 0) {
-		v4l2_err(&dev->v4l2_dev, "failed to parse header\n");
+		v4l2_err(&dev->v4l2_dev, "failed to parse JPEG header: %pe\n",
+			 ERR_PTR(ret));
 		return ret;
 	}
 
@@ -1349,9 +1350,6 @@ static int coda9_jpeg_prepare_decode(struct coda_ctx *ctx)
 
 	ret = coda_jpeg_decode_header(ctx, &src_buf->vb2_buf);
 	if (ret < 0) {
-		v4l2_err(&dev->v4l2_dev, "failed to decode JPEG header: %d\n",
-			 ret);
-
 		src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
 		dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
 		v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);