From: Mirela Rabulea <mirela.rabulea@xxxxxxx>
These are optional in struct v4l2_jpeg_header, so do not parse if
not requested, save some time.
Signed-off-by: Mirela Rabulea <mirela.rabulea@xxxxxxx>
---
drivers/media/v4l2-core/v4l2-jpeg.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/media/v4l2-core/v4l2-jpeg.c b/drivers/media/v4l2-core/v4l2-jpeg.c
index 244feccc4ea0..afce12822412 100644
--- a/drivers/media/v4l2-core/v4l2-jpeg.c
+++ b/drivers/media/v4l2-core/v4l2-jpeg.c
@@ -307,6 +307,9 @@ static int jpeg_parse_quantization_tables(struct jpeg_stream *stream,
{
int len = jpeg_get_word_be(stream);
+ if (!tables)
+ return 0;
+
if (len < 0)
return len;
/* Lq = 2 + n * 65 (for baseline DCT), n >= 1 */
@@ -361,6 +364,9 @@ static int jpeg_parse_huffman_tables(struct jpeg_stream *stream,
int mt;
int len = jpeg_get_word_be(stream);
+ if (!tables)
+ return 0;
+
if (len < 0)
return len;
/* Table B.5 - Huffman table specification parameter sizes and values */
--
2.17.1
