From ea8e3db7814764832b7c029cc65fa1fdf3ec2ad2 Mon Sep 17 00:00:00 2001
From: Timo Kreuzer <timo.kreuzer@reactos.org>
Date: Fri, 14 Aug 2009 22:08:15 +0000
Subject: [PATCH] [win32k] EngCreateDeviceBitmap: handle failure of
 EngLockSurface. Found by Amine.

svn path=/trunk/; revision=42671
---
 reactos/subsystems/win32/win32k/eng/surface.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/reactos/subsystems/win32/win32k/eng/surface.c b/reactos/subsystems/win32/win32k/eng/surface.c
index 8ee3b0d6b25..c5140476ccc 100644
--- a/reactos/subsystems/win32/win32k/eng/surface.c
+++ b/reactos/subsystems/win32/win32k/eng/surface.c
@@ -191,6 +191,13 @@ EngCreateDeviceBitmap(IN DHSURF dhsurf,
     }
 
     pso = EngLockSurface((HSURF)NewBitmap);
+    if (!pso)
+    {
+        DPRINT1("EngLockSurface failed on newly created bitmap!\n");
+        GreDeleteObject(NewBitmap);
+        return NULL;
+    }
+
     pso->dhsurf = dhsurf;
     EngUnlockSurface(pso);