BUGFIX: EngCreateBitmap() - don't call GDIOBJ_SetOwnerShip() with invalid handle

[reactos.git] / reactos / subsys / win32k / eng / surface.c

diff --git a/reactos/subsys/win32k/eng/surface.c b/reactos/subsys/win32k/eng/surface.c
index 7b6d003..952aa01 100644 (file)
--- a/reactos/subsys/win32k/eng/surface.c
+++ b/reactos/subsys/win32k/eng/surface.c
@@ -16,7 +16,7 @@
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
-/* $Id: surface.c,v 1.45 2004/12/12 01:40:36 weiden Exp $
+/* $Id: surface.c,v 1.47 2004/12/18 17:12:32 royce Exp $
  * 
  * COPYRIGHT:         See COPYING in the top level directory
  * PROJECT:           ReactOS kernel
@@ -332,6 +332,9 @@ EngCreateBitmap(IN SIZEL Size,
   HBITMAP NewBitmap;
   
   NewBitmap = IntCreateBitmap(Size, Width, Format, Flags, Bits);
+  if ( !NewBitmap )
+         return 0;
+
   GDIOBJ_SetOwnership(NewBitmap, NULL);
 
   return NewBitmap;
@@ -472,6 +475,8 @@ EngEraseSurface(SURFOBJ *Surface,
                RECTL *Rect,
                ULONG iColor)
 {
+  ASSERT(Surface);
+  ASSERT(Rect);
   return FillSolid(Surface, Rect, iColor);
 }