Index: /trunk/src/VBox/Devices/Storage/DevATA.cpp
===================================================================
--- /trunk/src/VBox/Devices/Storage/DevATA.cpp	(revision 37652)
+++ /trunk/src/VBox/Devices/Storage/DevATA.cpp	(revision 37653)
@@ -3124,5 +3124,5 @@
                         rc = VMR3ReqCallWait(PDMDevHlpGetVM(pDevIns), VMCPUID_ANY,
                                              (PFNRT)s->pDrvMount->pfnUnmount, 3,
-                                             s->pDrvMount /*=fForce*/, true /*=fEject*/);
+                                             s->pDrvMount, false /*=fForce*/, true /*=fEject*/);
                         Assert(RT_SUCCESS(rc) || (rc == VERR_PDM_MEDIA_LOCKED) || (rc = VERR_PDM_MEDIA_NOT_MOUNTED));
                         {