Return 0 on NULL argument.
---
libavformat/aviobuf.c | 7 ++++++-
1 files changed, 6 insertions(+), 1 deletions(-)
diff --git a/libavformat/aviobuf.c b/libavformat/aviobuf.c
index 898f35d..120c47a 100644
--- a/libavformat/aviobuf.c
+++ b/libavformat/aviobuf.c
@@ -982,7 +982,12 @@ int avio_open2(AVIOContext **s, const char *filename, int
flags,
int avio_close(AVIOContext *s)
{
- URLContext *h = s->opaque;
+ URLContext *h;
+
+ if (!s)
+ return 0;
+
+ h = s->opaque;
av_free(s->buffer);
av_free(s);
--
1.7.8.rc1
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