Index: module.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/module.inc,v
retrieving revision 1.192
diff -u -p -r1.192 module.inc
--- module.inc	9 May 2010 13:49:33 -0000	1.192
+++ module.inc	16 Jun 2010 02:14:07 -0000
@@ -231,7 +231,11 @@ function module_load_install($module) {
   // Make sure the installation API is available
   include_once DRUPAL_ROOT . '/includes/install.inc';
 
-  module_load_include('install', $module);
+  if (module_load_include('install', $module) == FALSE) {
+    return FALSE;
+  }
+
+  return TRUE;
 }
 
 /**