From 17e2c3cc6156591bdea49eba8f199ea20cb7a1f4 Mon Sep 17 00:00:00 2001
From: Mike McCormack <mike@codeweavers.com>
Date: Thu, 6 Apr 2006 12:45:19 +0900
Subject: [PATCH] msi: Avoid a crash if a parameter is NULL.

---
 dlls/msi/files.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dlls/msi/files.c b/dlls/msi/files.c
index aa6f8e61ea8..e191fe6c1d5 100644
--- a/dlls/msi/files.c
+++ b/dlls/msi/files.c
@@ -350,6 +350,9 @@ static BOOL check_volume(LPCWSTR path, LPCWSTR want_volume, LPWSTR volume,
     WCHAR name[MAX_PATH];
     UINT type;
 
+    if (!want_volume)
+        return TRUE;
+
     if (!(path[0] && path[1] == ':'))
     {
         if (intype)
-- 
2.11.4.GIT