Index: dll/win32/wdmaud.drv/legacy.c
===================================================================
--- dll/win32/wdmaud.drv/legacy.c	(revision 68510)
+++ dll/win32/wdmaud.drv/legacy.c	(working copy)
@@ -54,6 +54,11 @@
             break;
         }
 
+		if (dwResult == WAIT_FAILED)
+		{
+			break;
+		}
+
         do
         {
             Result = SyncOverlappedDeviceIoControl(KernelHandle,