the context is supposed to be freed in the generic code in utils.c

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@7604 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavformat/aiff.c

@@ -166,7 +166,6 @@ static int aiff_write_header(AVFormatContext *s)
 
     /* First verify if format is ok */
     if (!enc->codec_tag) {
-        av_free(aiff);
         return -1;
     }