Index: /trunk/src/VBox/Storage/Debug/VDDbgIoLog.cpp
===================================================================
--- /trunk/src/VBox/Storage/Debug/VDDbgIoLog.cpp	(revision 40989)
+++ /trunk/src/VBox/Storage/Debug/VDDbgIoLog.cpp	(revision 40990)
@@ -29,4 +29,5 @@
 #include <iprt/string.h>
 #include <iprt/semaphore.h>
+#include <iprt/asm.h>
 
 /*******************************************************************************
@@ -370,5 +371,5 @@
     PVDIOLOGGERINT pIoLogger = hIoLogger;
 
-    AssertPtrReturn(pIoLogger, VERR_INVALID_HANDLE);
+    AssertPtrReturn(pIoLogger, 0);
 
     return pIoLogger->fFlags;