[tkreuzer] 56580: [WIN32K] Check for psoMask == NULL in BltMask. Fixes part 2 of bug #7070

Author: tkreuzer
Date: Sun May 13 19:39:20 2012
New Revision: 56580

URL: http://svn.reactos.org/svn/reactos?rev=56580&view=rev
Log:
[WIN32K]
Check for psoMask == NULL in BltMask. Fixes part 2 of bug #7070

Modified:
    trunk/reactos/win32ss/gdi/eng/bitblt.c

Modified: trunk/reactos/win32ss/gdi/eng/bitblt.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/win32ss/gdi/eng/bitblt.c?r…
==============================================================================
--- trunk/reactos/win32ss/gdi/eng/bitblt.c [iso-8859-1] (original)
+++ trunk/reactos/win32ss/gdi/eng/bitblt.c [iso-8859-1] Sun May 13 19:39:20 2012
@@ -49,6 +49,8 @@
     DWORD fgndRop, bkgndRop;
 
     ASSERT(IS_VALID_ROP4(Rop4));
+
+    if (!psoMask) return FALSE;
 
     fgndRop = ROP4_FGND(Rop4);
     bkgndRop = ROP4_BKGND(Rop4);