Index: modules/image/image.field.inc
===================================================================
RCS file: /cvs/drupal/drupal/modules/image/image.field.inc,v
retrieving revision 1.28
diff -u -r1.28 image.field.inc
--- modules/image/image.field.inc	22 Sep 2010 03:24:09 -0000	1.28
+++ modules/image/image.field.inc	28 Sep 2010 12:08:51 -0000
@@ -489,6 +489,9 @@
   }
 
   foreach ($items as $delta => $item) {
+    if (!$item) {
+      continue;
+    }
     if (isset($link_file)) {
       $uri = array(
         'path' => file_create_url($item['uri']),