From cd174c7c7c5849727f45b7d7d263810ddf9b9cba Mon Sep 17 00:00:00 2001
From: James Almer <jamrial@gmail.com>
Date: Fri, 3 Jan 2025 14:10:54 -0300
Subject: [PATCH] avfilter/aeval: don't leak the strdup'd expression string

Signed-off-by: James Almer <jamrial@gmail.com>
---
 libavfilter/aeval.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libavfilter/aeval.c b/libavfilter/aeval.c
index 45813dada6..37447b47e8 100644
--- a/libavfilter/aeval.c
+++ b/libavfilter/aeval.c
@@ -116,7 +116,8 @@ static int parse_channel_expressions(AVFilterContext *ctx,
 
     if (!eval->exprs || !*eval->exprs) {
         av_log(ctx, AV_LOG_ERROR, "Channels expressions list is empty\n");
-        return AVERROR(EINVAL);
+        ret = AVERROR(EINVAL);
+        goto end;
     }
 
     if (!strcmp(ctx->filter->name, "aeval")) {