avformat: Replace ffurl_close() by ffurl_closep() where appropriate

It avoids leaving dangling pointers behind in memory.

Also remove redundant checks for whether the URLContext to be closed is
already NULL.

Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/libavformat/rtmphttp.c b/libavformat/rtmphttp.c
index ef6146ca86..c920c19ab5 100644
--- a/libavformat/rtmphttp.c
+++ b/libavformat/rtmphttp.c
@@ -176,7 +176,7 @@ static int rtmp_http_close(URLContext *h)
     }
 
     av_freep(&rt->out_data);
-    ffurl_close(rt->stream);
+    ffurl_closep(&rt->stream);
 
     return ret;
 }