From fb3bffdf30d150f43c9980adb3578f5820783265 Mon Sep 17 00:00:00 2001
From: Thomas Faber <thomas.faber@reactos.org>
Date: Mon, 13 Oct 2014 09:18:46 +0000
Subject: [PATCH] [USER32] - Correctly treat lpnLengthNeeded as optional in
 GetUserObjectInformationA. Fixes crash in user32_winetest:winstation
 CORE-8101 #resolve

svn path=/trunk/; revision=64705
---
 reactos/win32ss/user/user32/misc/object.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/reactos/win32ss/user/user32/misc/object.c b/reactos/win32ss/user/user32/misc/object.c
index d85e6768d45..324ae459033 100644
--- a/reactos/win32ss/user/user32/misc/object.c
+++ b/reactos/win32ss/user/user32/misc/object.c
@@ -73,7 +73,8 @@ GetUserObjectInformationA(
 
     if (LengthNeeded != 0)
     {
-        *lpnLengthNeeded = LengthNeeded;
+        if (lpnLengthNeeded)
+            *lpnLengthNeeded = LengthNeeded;
         ret = TRUE;
     }
   }