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avfilter/avf_showfreqs: fix possible null pointer dereference 

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2016-01-08 14:56:15 +01:00
parent 47cd85e1e5
commit b7b4d99a18
1 changed files with 4 additions and 2 deletions
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6
libavfilter/avf_showfreqs.c
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@ -459,8 +459,10 @@ static av_cold void uninit(AVFilterContext *ctx)
av_fft_end(s->fft);
for (i = 0; i < s->nb_channels; i++) {
av_freep(&s->fft_data[i]);
av_freep(&s->avg_data[i]);
if (s->fft_data)
av_freep(&s->fft_data[i]);
if (s->avg_data)
av_freep(&s->avg_data[i]);
}
av_freep(&s->fft_data);
av_freep(&s->avg_data);