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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

View File

@ -143,7 +143,7 @@ out:
void av_file_unmap(uint8_t *bufptr, size_t size)
{
if (!size)
if (!size || !bufptr)
return;
#if HAVE_MMAP
munmap(bufptr, size);