[FFmpeg-cvslog] libavfilter/vf_curves: fix a memory leak on error path

[LuMingYin]

ffmpeg | branch: master | LuMingYin <lumingyindetect at 163.com> | Sat Apr 13 11:57:00 2024 +0800| [3f691c0c6a8cbb293740df4f3bba06a8f5d5fba5] | committer: Zhao Zhili

libavfilter/vf_curves: fix a memory leak on error path

Signed-off-by: LuMingYin <lumingyindetect at 163.com>
Signed-off-by: Zhao Zhili <zhilizhao at tencent.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=3f691c0c6a8cbb293740df4f3bba06a8f5d5fba5
---

 libavfilter/vf_curves.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/libavfilter/vf_curves.c b/libavfilter/vf_curves.c
index 3e4a42bab3..97f284db22 100644
--- a/libavfilter/vf_curves.c
+++ b/libavfilter/vf_curves.c
@@ -182,20 +182,22 @@ static int parse_points_str(AVFilterContext *ctx, struct keypoint **points, cons
         if (point->x < 0 || point->x > 1 || point->y < 0 || point->y > 1) {
             av_log(ctx, AV_LOG_ERROR, "Invalid key point coordinates (%f;%f), "
                    "x and y must be in the [0;1] range.\n", point->x, point->y);
+            av_free(point);
             return AVERROR(EINVAL);
         }
-        if (!*points)
-            *points = point;
         if (last) {
             if ((int)(last->x * scale) >= (int)(point->x * scale)) {
                 av_log(ctx, AV_LOG_ERROR, "Key point coordinates (%f;%f) "
                        "and (%f;%f) are too close from each other or not "
                        "strictly increasing on the x-axis\n",
                        last->x, last->y, point->x, point->y);
+                av_free(point);
                 return AVERROR(EINVAL);
             }
             last->next = point;
         }
+        if (!*points)
+            *points = point;
         last = point;
     }