diff -auwrp orig/drupal-7.0-rc2/modules/file/file.module drupal-7.0-rc2/modules/file/file.module
--- orig/drupal-7.0-rc2/modules/file/file.module	2010-12-10 17:32:20.000000000 -0800
+++ drupal-7.0-rc2/modules/file/file.module	2010-12-18 20:22:35.778143081 -0800
@@ -494,7 +494,7 @@ function file_managed_file_value(&$eleme
       // functionality to allow File fields to be extended through FAPI.
       if (isset($element['#file_value_callbacks'])) {
         foreach ($element['#file_value_callbacks'] as $callback) {
-          $callback($element, $input);
+          $callback($element, $input, $form_state);
         }
       }
       // Load file if the FID has changed to confirm it exists.
Only in drupal-7.0-rc2/modules/file: file.module~