From 8592512f2ff6827ca1333728cbf5536be3f79ebe Mon Sep 17 00:00:00 2001
From: Christoph von Wittich <christoph_vw@reactos.org>
Date: Sat, 6 Mar 2010 14:29:56 +0000
Subject: [PATCH] [RTL] sync find_query_actctx with wine 1.1.40

svn path=/trunk/; revision=45945
---
 reactos/lib/rtl/actctx.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/reactos/lib/rtl/actctx.c b/reactos/lib/rtl/actctx.c
index 896d1fbf069..f7d727099fb 100644
--- a/reactos/lib/rtl/actctx.c
+++ b/reactos/lib/rtl/actctx.c
@@ -2096,6 +2096,8 @@ static NTSTATUS find_query_actctx( HANDLE *handle, DWORD flags, ULONG class )
 
     if (flags & QUERY_ACTCTX_FLAG_USE_ACTIVE_ACTCTX)
     {
+        if (*handle) return STATUS_INVALID_PARAMETER;
+
         if (NtCurrentTeb()->ActivationContextStackPointer->ActiveFrame)
             *handle = NtCurrentTeb()->ActivationContextStackPointer->ActiveFrame->ActivationContext;
     }
@@ -2104,6 +2106,8 @@ static NTSTATUS find_query_actctx( HANDLE *handle, DWORD flags, ULONG class )
         ULONG magic;
         LDR_DATA_TABLE_ENTRY *pldr;
 
+        if (!*handle) return STATUS_INVALID_PARAMETER;
+
         LdrLockLoaderLock( 0, NULL, &magic );
         if (!LdrFindEntryForAddress( *handle, &pldr ))
         {