BUGFIX: Missing error handling in IntSetDIBits()

reactos/subsys/win32k/objects

diff -u -r1.57 -r1.58
--- dib.c	12 Dec 2004 01:40:38 -0000	1.57
+++ dib.c	18 Dec 2004 17:15:10 -0000	1.58
@@ -1,5 +1,5 @@

 /*

- * $Id: dib.c,v 1.57 2004/12/12 01:40:38 weiden Exp $

+ * $Id: dib.c,v 1.58 2004/12/18 17:15:10 royce Exp $

  *
  * ReactOS W32 Subsystem
  * Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 ReactOS Team

@@ -159,7 +159,21 @@

                                  BitmapFormat(bmi->bmiHeader.biBitCount, bmi->bmiHeader.biCompression),
                                  0 < bmi->bmiHeader.biHeight ? 0 : BMF_TOPDOWN,
                                  (PVOID) Bits);

+  if (0 == SourceBitmap)
+  {
+      BITMAPOBJ_UnlockBitmap(hBitmap);
+      SetLastWin32Error(ERROR_NO_SYSTEM_RESOURCES);
+      return 0;
+  }
+

   SourceSurf = EngLockSurface((HSURF)SourceBitmap);

+  if (NULL == SourceSurf)
+  {
+	  EngDeleteSurface((HSURF)SourceBitmap);
+      BITMAPOBJ_UnlockBitmap(hBitmap);
+      SetLastWin32Error(ERROR_NO_SYSTEM_RESOURCES);
+      return 0;
+  }

 
   // Destination palette obtained from the hDC
   hDCPalette = PALETTE_LockPalette(DC->DevInfo->hpalDefault);