Index: /trunk/src/VBox/ValidationKit/testmanager/batch/virtual_test_sheriff.py
===================================================================
--- /trunk/src/VBox/ValidationKit/testmanager/batch/virtual_test_sheriff.py	(revision 68141)
+++ /trunk/src/VBox/ValidationKit/testmanager/batch/virtual_test_sheriff.py	(revision 68142)
@@ -835,6 +835,9 @@
     def investigateInfoHalReturnToFirmware(self, oCaseFile, sInfoText, dLogs):
         """ Investigates HalReturnToFirmware hangs """
+        del oCaseFile
+        del sInfoText
+        del dLogs
         # hope that's sufficient
-        return (True, ktReason_Unknown_HalReturnToFirmware);
+        return (True, self.ktReason_Unknown_HalReturnToFirmware);
 
     ## Things we search a main or VM log for to figure out why something went bust.