handle no content comment block in the gif.
Change-Id: I3c87a151b0d0f487865c4f84d26101797bc91290
Signed-off-by: Joey Pan <joey.pan@mediatek.com>
(cherry picked from commit 7ee131f83daab0744dbbfbbf2f375c05a5285f2e)
diff --git a/dgif_lib.c b/dgif_lib.c
index c7ff504..744a2f9 100644
--- a/dgif_lib.c
+++ b/dgif_lib.c
@@ -1134,11 +1134,13 @@
if (DGifGetExtension(GifFile,&ExtFunction,&ExtData) == GIF_ERROR)
return (GIF_ERROR);
/* Create an extension block with our data */
- if (GifAddExtensionBlock(&GifFile->ExtensionBlockCount,
+ if (ExtData != NULL) {
+ if (GifAddExtensionBlock(&GifFile->ExtensionBlockCount,
&GifFile->ExtensionBlocks,
ExtFunction, ExtData[0], &ExtData[1])
== GIF_ERROR)
return (GIF_ERROR);
+ }
while (ExtData != NULL) {
if (DGifGetExtensionNext(GifFile, &ExtData) == GIF_ERROR)
return (GIF_ERROR);