From f8a89aa0833e213eeb5cf91f16628ee5480fd263 Mon Sep 17 00:00:00 2001
From: Alexandre Julliard <julliard@winehq.org>
Date: Wed, 3 Mar 2010 11:52:59 +0100
Subject: [PATCH] krnl386.exe: Don't try to free again an already freed global
 block.

---
 dlls/krnl386.exe16/global.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/dlls/krnl386.exe16/global.c b/dlls/krnl386.exe16/global.c
index db07477b5e..ba4d7df645 100644
--- a/dlls/krnl386.exe16/global.c
+++ b/dlls/krnl386.exe16/global.c
@@ -182,6 +182,11 @@ BOOL16 GLOBAL_FreeBlock( HGLOBAL16 handle )
     sel = GlobalHandleToSel16( handle );
     if (!VALID_HANDLE(sel)) return FALSE;
     pArena = GET_ARENA_PTR(sel);
+    if (!pArena->size)
+    {
+        WARN( "already free %x\n", handle );
+        return FALSE;
+    }
     SELECTOR_FreeBlock( sel );
     memset( pArena, 0, sizeof(GLOBALARENA) );
     return TRUE;
-- 
2.33.8