From 692b1c23aa28b6062f85c75b7f9a31f0c91ddbb4 Mon Sep 17 00:00:00 2001
From: Giannis Adamopoulos <gadamopoulos@reactos.org>
Date: Thu, 14 Oct 2010 18:53:12 +0000
Subject: [PATCH] [win32k] - When we try to call a hook with null hook proc
 will cause a crash in user32. Add an assertion in win32k in order to catch
 the problem a bit earlier

svn path=/trunk/; revision=49145
---
 reactos/subsystems/win32/win32k/ntuser/callback.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/reactos/subsystems/win32/win32k/ntuser/callback.c b/reactos/subsystems/win32/win32k/ntuser/callback.c
index 6d6a7529ea0..e536d4ca7e1 100644
--- a/reactos/subsystems/win32/win32k/ntuser/callback.c
+++ b/reactos/subsystems/win32/win32k/ntuser/callback.c
@@ -339,6 +339,8 @@ co_IntCallHookProc(INT HookId,
    PANSI_STRING asClassName;
    PTHREADINFO pti;
 
+   ASSERT(Proc);
+
    pti = PsGetCurrentThreadWin32Thread();
    if (pti->TIF_flags & TIF_INCLEANUP)
    {