cache: use av_freep instead of av_free in cache_open

Signed-off-by: Jean First <jeanfirst@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 576ada791a5085b7427c9062ba4f65e811914bd0)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 1 insertions, 1 deletions

diff --git a/libavformat/cache.c b/libavformat/cache.c
index d94cf5fbac..011ea829c3 100644
--- a/libavformat/cache.c
+++ b/libavformat/cache.c
@@ -64,7 +64,7 @@ static int cache_open(URLContext *h, const char *arg, int flags)
     }
 
     unlink(buffername);
-    av_free(buffername);
+    av_freep(&buffername);
 
     return ffurl_open(&c->inner, arg, flags, &h->interrupt_callback, NULL);
 }