[FFmpeg-cvslog] avcodec/utils: Avoid undefined void casts in ff_fast_malloc()
Michael Niedermayer
git at videolan.org
Sat Jul 11 23:44:39 CEST 2015
ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Sat Jul 11 23:08:08 2015 +0200| [59a07df0673122b334af1f26367f6a49a0ec121b] | committer: Michael Niedermayer
avcodec/utils: Avoid undefined void casts in ff_fast_malloc()
based on code from libavutil/mem.c
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=59a07df0673122b334af1f26367f6a49a0ec121b
---
libavcodec/utils.c | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index 0910fca..b086665 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -124,13 +124,16 @@ static void *avformat_mutex;
static inline int ff_fast_malloc(void *ptr, unsigned int *size, size_t min_size, int zero_realloc)
{
- void **p = ptr;
- if (min_size <= *size && *p)
+ void *val;
+
+ memcpy(&val, ptr, sizeof(val));
+ if (min_size <= *size && val)
return 0;
min_size = FFMAX(min_size + min_size / 16 + 32, min_size);
- av_free(*p);
- *p = zero_realloc ? av_mallocz(min_size) : av_malloc(min_size);
- if (!*p)
+ av_freep(ptr);
+ val = zero_realloc ? av_mallocz(min_size) : av_malloc(min_size);
+ memcpy(ptr, &val, sizeof(val));
+ if (!val)
min_size = 0;
*size = min_size;
return 1;
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