Index: wp-includes/link-template.php
===================================================================
--- wp-includes/link-template.php	(revision 10204)
+++ wp-includes/link-template.php	(working copy)
@@ -1257,9 +1257,6 @@
 
 	$page = get_query_var('cpage');
 
-	if ( !$page )
-		$page = 1;
-
 	$nextpage = intval($page) + 1;
 
 	if ( empty($max_page) )
@@ -1293,10 +1290,7 @@
 
 	$page = get_query_var('cpage');
 
-	if ( !$page )
-		$page = 1;
-
-	if ( $page <= 1 )
+	if ( intval($page) <= 1 )
 		return;
 
 	$prevpage = intval($page) - 1;