--- embedaddon/expat/lib/xmltok_impl.c	2012/02/21 23:00:54	1.1.1.1
+++ embedaddon/expat/lib/xmltok_impl.c	2013/07/22 01:14:39	1.1.1.1.2.1
@@ -1744,7 +1744,7 @@ PREFIX(updatePosition)(const ENCODING *enc,
                        const char *end,
                        POSITION *pos)
 {
-  while (ptr != end) {
+  while (ptr < end) {
     switch (BYTE_TYPE(enc, ptr)) {
 #define LEAD_CASE(n) \
     case BT_LEAD ## n: \