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pngdec: Avoid a double-free.

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Earlier, at line#275, if ok == 0, it would have triggered a double free
of 'rgb'.

Change-Id: Iaee1f35824a66f6e4b488e523416f73b87c5ec30
This commit is contained in:
Urvang Joshi 2013-04-05 11:24:59 -07:00
parent 82abbe12fb
commit b68912af2c
1 changed files with 1 additions and 2 deletions
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3
examples/pngdec.c
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@ -207,7 +207,6 @@ int ReadPNG(FILE* in_file, WebPPicture* const pic, int keep_alpha,
Error:
MetadataFree(metadata);
png_destroy_read_struct(&png, &info, &end_info);
free(rgb);
goto End;
}
@ -270,13 +269,13 @@ int ReadPNG(FILE* in_file, WebPPicture* const pic, int keep_alpha,
pic->use_argb = 1;
ok = has_alpha ? WebPPictureImportRGBA(pic, rgb, stride)
: WebPPictureImportRGB(pic, rgb, stride);
free(rgb);
if (!ok) {
goto Error;
}
End:
free(rgb);
return ok;
}
#else // !WEBP_HAVE_PNG