[cwittich] 34300: don't try to dereference NULL pointers now Avira AntiVir installs without crashing the whole system

Author: cwittich
Date: Sat Jul  5 04:19:56 2008
New Revision: 34300

URL: http://svn.reactos.org/svn/reactos?rev=34300&view=rev
Log:
don't try to dereference NULL pointers
now Avira AntiVir installs without crashing the whole system

Modified:
    trunk/reactos/subsystems/win32/win32k/ntuser/message.c
    trunk/reactos/subsystems/win32/win32k/ntuser/monitor.c

Modified: trunk/reactos/subsystems/win32/win32k/ntuser/message.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/nt…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/ntuser/message.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/ntuser/message.c [iso-8859-1] Sat Jul  5
04:19:56 2008
@@ -1550,6 +1550,8 @@
          MmCopyToCaller(UnsafeInfo, &Info, sizeof(NTUSERSENDMESSAGEINFO));
          return 0;
       }
+      if (!Window->Wnd)
+         return 0;
    }
 
    /* FIXME: Check for an exiting window. */

Modified: trunk/reactos/subsystems/win32/win32k/ntuser/monitor.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/nt…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/ntuser/monitor.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/ntuser/monitor.c [iso-8859-1] Sat Jul  5
04:19:56 2008
@@ -899,6 +899,9 @@
       RETURN(hMonitor);
    }
 
+   if (!Window->Wnd)
+      RETURN(hMonitor);
+
    Rect.left = Rect.right = Window->Wnd->WindowRect.left;
    Rect.top = Rect.bottom = Window->Wnd->WindowRect.bottom;