From 009b8dd519cdef7bde42262b60579d8509c37ec2 Mon Sep 17 00:00:00 2001
From: Detlef Riekenberg <wine.dev@web.de>
Date: Tue, 24 Apr 2007 00:05:47 +0200
Subject: [PATCH] localui: Avoid crash on NULL pointer.

---
 dlls/localui/localui.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/dlls/localui/localui.c b/dlls/localui/localui.c
index 36b28125949..2fd61c3444b 100644
--- a/dlls/localui/localui.c
+++ b/dlls/localui/localui.c
@@ -50,11 +50,11 @@ static LPWSTR strdupWW(LPCWSTR pPrefix, LPCWSTR pSuffix)
     LPWSTR  ptr;
     DWORD   len;
 
-    len = lstrlenW(pPrefix) + lstrlenW(pSuffix) + 1;
+    len = lstrlenW(pPrefix) + (pSuffix ? lstrlenW(pSuffix) : 0) + 1;
     ptr = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
     if (ptr) {
         lstrcpyW(ptr, pPrefix);
-        lstrcatW(ptr, pSuffix);
+        if (pSuffix) lstrcatW(ptr, pSuffix);
     }
     return ptr;
 }