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png: use av_mallocz_array() for the zlib zalloc function

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Fixes valgrind uninitialized memory errors when decoding png.

CC:libav-stable@libav.org
This commit is contained in:
Justin Ruggles 2013-01-16 18:10:57 -05:00
parent e984f47873
commit 486f0b0cfc
1 changed files with 1 additions and 3 deletions
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4
libavcodec/png.c
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@ -47,9 +47,7 @@ const uint8_t ff_png_pass_mask[NB_PASSES] = {
void *ff_png_zalloc(void *opaque, unsigned int items, unsigned int size)
{
if(items >= UINT_MAX / size)
return NULL;
return av_malloc(items * size);
return av_mallocz_array(items, size);
}
void ff_png_zfree(void *opaque, void *ptr)