From: Jérôme Gardou <jerome.gardou@reactos.org>
Date: Mon, 19 Apr 2010 21:56:44 +0000 (+0000)
Subject: [WIN32K]
X-Git-Tag: backups/reactos-yarotows@57446~158
X-Git-Url: https://git.reactos.org/?p=reactos.git;a=commitdiff_plain;h=202a5fc5c7ba775819b09b651a8b82edd0753390;hp=8188ea39596d03a1c8cde30cf68e27856e2eacda

[WIN32K]
  - Do not access surface before holding ppdev Lock

svn path=/branches/reactos-yarotows/; revision=46951
---

diff --git a/subsystems/win32/win32k/objects/bitblt.c b/subsystems/win32/win32k/objects/bitblt.c
index e247fd7d9a0..95aadff2ef8 100644
--- a/subsystems/win32/win32k/objects/bitblt.c
+++ b/subsystems/win32/win32k/objects/bitblt.c
@@ -942,13 +942,6 @@ IntPatBlt(
 
     ASSERT(pbrush);
 
-    psurf = pdc->dclevel.pSurface;
-    if (psurf == NULL)
-    {
-        SetLastWin32Error(ERROR_INVALID_HANDLE);
-        return FALSE;
-    }
-
     if (pbrush->flAttrs & GDIBRUSH_IS_NULL)
     {
         return TRUE;
@@ -988,6 +981,8 @@ IntPatBlt(
 
     DC_vPrepareDCsForBlit(pdc, DestRect, NULL, DestRect);
 
+    psurf = pdc->dclevel.pSurface;
+
     EBRUSHOBJ_vInit(&eboFill, pbrush, pdc);
 
     ret = IntEngBitBlt(