Index: wp-admin/includes/update.php
===================================================================
--- wp-admin/includes/update.php	(revision 23132)
+++ wp-admin/includes/update.php	(working copy)
@@ -38,7 +38,6 @@
 		return false;
 	if ( !isset( $from_api->updates ) || !is_array( $from_api->updates ) ) return false;
 	$updates = $from_api->updates;
-	if ( !is_array( $updates ) ) return false;
 	$result = array();
 	foreach($updates as $update) {
 		if ( array_key_exists( $update->current.'|'.$update->locale, $dismissed ) ) {