From 1374772ff71d99fa61f9016409b2fa745317b6c0 Mon Sep 17 00:00:00 2001
From: Cameron Gutman <aicommander@gmail.com>
Date: Mon, 6 Feb 2012 15:04:12 +0000
Subject: [PATCH] [NTOSKRNL] - Assert that reference counts are sane in
 MmReferencePage and MmDereferencePage

svn path=/trunk/; revision=55461
---
 reactos/ntoskrnl/mm/freelist.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/reactos/ntoskrnl/mm/freelist.c b/reactos/ntoskrnl/mm/freelist.c
index ba66cd7871a..b69a40b971c 100644
--- a/reactos/ntoskrnl/mm/freelist.c
+++ b/reactos/ntoskrnl/mm/freelist.c
@@ -501,6 +501,7 @@ MmReferencePage(PFN_NUMBER Pfn)
    ASSERT(Page);
    ASSERT_IS_ROS_PFN(Page);
 
+   ASSERT(Page->u3.e2.ReferenceCount != 0);
    Page->u3.e2.ReferenceCount++;
 }
 
@@ -543,6 +544,7 @@ MmDereferencePage(PFN_NUMBER Pfn)
    ASSERT(Page);
    ASSERT_IS_ROS_PFN(Page);
 
+   ASSERT(Page->u3.e2.ReferenceCount != 0);
    Page->u3.e2.ReferenceCount--;
    if (Page->u3.e2.ReferenceCount == 0)
    {