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avutil/file: add more check befor destory the buffer 

add more check befor destory the buffer

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Jun Zhao <barryjzhao@tencent.com>
This commit is contained in:
Jun Zhao 2019-08-30 09:09:16 +08:00
parent 7ce15b1d43
commit 95780f4dcb
1 changed files with 1 additions and 1 deletions
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2
libavutil/file.c
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@ -143,7 +143,7 @@ out:
void av_file_unmap(uint8_t *bufptr, size_t size) void av_file_unmap(uint8_t *bufptr, size_t size)
{ {
if (!size) if (!size || !bufptr)
return; return;
#if HAVE_MMAP #if HAVE_MMAP
munmap(bufptr, size); munmap(bufptr, size);