[FFmpeg-devel] [PATCH 3/5] swscale/graph: fix leak in adapt_colors()

[Lidong Yan]

In adapt_colors(), ff_sws_lut3d_generate() allocates memory in lut.
However if add_legacy_sws_pass() failed, lut leaks. free lut before
return ret.

Signed-off-by: Lidong Yan <502024330056 at smail.nju.edu.cn>
---
 libswscale/graph.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libswscale/graph.c b/libswscale/graph.c
index dc7784aa49..975a2b6065 100644
--- a/libswscale/graph.c
+++ b/libswscale/graph.c
@@ -523,8 +523,10 @@ static int adapt_colors(SwsGraph *graph, SwsFormat src, SwsFormat dst,
         SwsFormat tmp = src;
         tmp.format = fmt_in;
         ret = add_legacy_sws_pass(graph, src, tmp, input, &input);
-        if (ret < 0)
+        if (ret < 0) {
+            ff_sws_lut3d_free(&lut);
             return ret;
+        }
     }
 
     ret = ff_sws_lut3d_generate(lut, fmt_in, fmt_out, &map);
-- 
2.50.0.106.gf0135a9047.dirty