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avfilter/formats: free the correct pointer in ADD_FORMAT()

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Also only free it when it was not previously allocated to return to the
state prior to the failing function call

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-11-21 22:13:44 +01:00
parent 42f3cb419a
commit 75819fafd8
1 changed files with 3 additions and 1 deletions
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4
libavfilter/formats.c
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@ -314,6 +314,7 @@ AVFilterChannelLayouts *avfilter_make_format64_list(const int64_t *fmts)
#define ADD_FORMAT(f, fmt, type, list, nb) \
do { \
type *fmts; \
void *oldf = *f; \
\
if (!(*f) && !(*f = av_mallocz(sizeof(**f)))) \
return AVERROR(ENOMEM); \
@ -321,7 +322,8 @@ do { \
fmts = av_realloc((*f)->list, \
sizeof(*(*f)->list) * ((*f)->nb + 1));\
if (!fmts) { \
av_freep(&f); \
if (!oldf) \
av_freep(f); \
return AVERROR(ENOMEM); \
} \
\