Do not dereference NULL pointers and this time for real.

svn path=/trunk/; revision=16764

diff --git a/reactos/subsys/win32k/ntuser/winpos.c b/reactos/subsys/win32k/ntuser/winpos.c
index f1de608..52f1fd4 100644 (file)
--- a/reactos/subsys/win32k/ntuser/winpos.c
+++ b/reactos/subsys/win32k/ntuser/winpos.c
@@ -164,7 +164,7 @@ WinPosActivateOtherWindow(PWINDOW_OBJECT Window)
 
 done:
   Fg = NtUserGetForegroundWindow();
-  if (!Fg || Window->Self == Fg)
+  if (Wnd && (!Fg || Window->Self == Fg))
   {
     if (IntSetForegroundWindow(Wnd))
     {