Index: /trunk/src/VBox/Frontends/VirtualBox/src/platform/darwin/DarwinKeyboard.cpp
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/src/platform/darwin/DarwinKeyboard.cpp	(revision 85325)
+++ /trunk/src/VBox/Frontends/VirtualBox/src/platform/darwin/DarwinKeyboard.cpp	(revision 85326)
@@ -1754,7 +1754,8 @@
 
             rc = IOServiceAddMatchingNotification(pHidState->pNotificationPrortRef, kIOMatchedNotification,
-                pDictionary, darwinUsbHidDeviceMatchCb, pHidState, &pHidState->pUsbHidDeviceMatchNotify);
-
-            if (rc == kIOReturnSuccess && &pHidState->pUsbHidDeviceMatchNotify != NULL)
+                                                  pDictionary, darwinUsbHidDeviceMatchCb, pHidState,
+                                                  &pHidState->pUsbHidDeviceMatchNotify);
+
+            if (rc == kIOReturnSuccess && pHidState->pUsbHidDeviceMatchNotify != IO_OBJECT_NULL)
             {
                 darwinUsbHidDeviceMatchCb(pHidState, pHidState->pUsbHidDeviceMatchNotify);