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avfilter/vf_signature: Fix leak of string upon error

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If an error happens between allocating a string intended to be used as
an inpad's name and attaching it to its input pad, the string leaks.
Fix this by inserting the inpad directly after allocating its string.

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt 2020-08-25 00:20:35 +02:00
parent 37838417b8
commit 16ea88778e
1 changed files with 4 additions and 5 deletions
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9
libavfilter/vf_signature.c
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@ -663,6 +663,10 @@ static av_cold int init(AVFilterContext *ctx)
if (!pad.name)
return AVERROR(ENOMEM);
if ((ret = ff_insert_inpad(ctx, i, &pad)) < 0) {
av_freep(&pad.name);
return ret;
}
sc = &(sic->streamcontexts[i]);
@ -679,11 +683,6 @@ static av_cold int init(AVFilterContext *ctx)
sc->coarseend = sc->coarsesiglist;
sc->coarsecount = 0;
sc->midcoarse = 0;
if ((ret = ff_insert_inpad(ctx, i, &pad)) < 0) {
av_freep(&pad.name);
return ret;
}
}
/* check filename */