From 268d48187759d3a716a6a22d2210c41bbf4d9869 Mon Sep 17 00:00:00 2001
From: Timo Kreuzer <timo.kreuzer@reactos.org>
Date: Sun, 29 Jul 2012 12:22:06 +0000
Subject: [PATCH] [WIN32K] Check for NULL dc surface before dereferencing it in
 IntGdiRealizePalette.

svn path=/trunk/; revision=56980
---
 reactos/win32ss/gdi/ntgdi/palette.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/reactos/win32ss/gdi/ntgdi/palette.c b/reactos/win32ss/gdi/ntgdi/palette.c
index d471850d5e7..ff600d7ce38 100644
--- a/reactos/win32ss/gdi/ntgdi/palette.c
+++ b/reactos/win32ss/gdi/ntgdi/palette.c
@@ -767,6 +767,11 @@ IntGdiRealizePalette(HDC hDC)
         return 0;
     }
 
+    if (!pdc->dclevel.pSurface)
+    {
+        goto cleanup;
+    }
+
     ppalSurf = pdc->dclevel.pSurface->ppal;
     ppalDC = pdc->dclevel.ppal;