Index: modules/node/node.admin.inc
===================================================================
RCS file: /cvs/drupal/drupal/modules/node/node.admin.inc,v
retrieving revision 1.72
diff -u -p -r1.72 node.admin.inc
--- modules/node/node.admin.inc	22 Oct 2009 01:19:45 -0000	1.72
+++ modules/node/node.admin.inc	24 Oct 2009 06:05:30 -0000
@@ -487,6 +487,11 @@ function node_admin_nodes_validate($form
  * Execute the chosen 'Update option' on the selected nodes.
  */
 function node_admin_nodes_submit($form, &$form_state) {
+  // If no content is selected tell the user and return.
+  if (!is_array($form_state['values']['nodes'])) {
+    drupal_set_message('No content was selected.', 'warning');
+    return;
+  }
   $operations = module_invoke_all('node_operations');
   $operation = $operations[$form_state['values']['operation']];
   // Filter out unchecked nodes