From f9a6dfab7d27d12a020642efd1393f869a464fbc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Gardou?= <jerome.gardou@reactos.org>
Date: Thu, 12 Jul 2012 14:55:53 +0000
Subject: [PATCH] [NTDLL]  * Fix Cookie for loader locking generation Silences
 "LdrUnlockLoaderLock() called with an invalid cookie!" debug messages

svn path=/trunk/; revision=56874
---
 reactos/dll/ntdll/ldr/ldrapi.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/reactos/dll/ntdll/ldr/ldrapi.c b/reactos/dll/ntdll/ldr/ldrapi.c
index f5c59139377..4b73bf92c5d 100644
--- a/reactos/dll/ntdll/ldr/ldrapi.c
+++ b/reactos/dll/ntdll/ldr/ldrapi.c
@@ -37,7 +37,7 @@ LdrpMakeCookie(VOID)
 {
     /* Generate a cookie */
     return (((ULONG_PTR)NtCurrentTeb()->RealClientId.UniqueThread & 0xFFF) << 16) |
-                        _InterlockedIncrement(&LdrpLoaderLockAcquisitonCount);
+                        (_InterlockedIncrement(&LdrpLoaderLockAcquisitonCount) & 0xFFFF);
 }
 
 /*
@@ -1540,19 +1540,19 @@ NTAPI
 LdrUnloadAlternateResourceModule(IN PVOID BaseAddress)
 {
     ULONG_PTR Cookie;
-    
+
     /* Acquire the loader lock */
     LdrLockLoaderLock(TRUE, NULL, &Cookie);
-    
+
     /* Check if there's any alternate resources loaded */
     if (AlternateResourceModuleCount)
     {
         UNIMPLEMENTED;
     }
-    
+
     /* Release the loader lock */
     LdrUnlockLoaderLock(1, Cookie);
-    
+
     /* All done */
     return TRUE;
 }
@@ -1570,9 +1570,9 @@ LdrLoadAlternateResourceModule(IN PVOID Module,
 {
     /* Is MUI Support enabled? */
     if (!LdrAlternateResourcesEnabled()) return STATUS_SUCCESS;
-    
+
     UNIMPLEMENTED;
     return STATUS_MUI_FILE_NOT_FOUND;
 }
-    
+
 /* EOF */