From ac044acb7d86ccf445e91a2b2c775e9c75d967cd Mon Sep 17 00:00:00 2001
From: Kamil Hornicek <kamil.hornicek@reactos.org>
Date: Sat, 11 Feb 2017 10:34:35 +0000
Subject: [PATCH] [UMPNPMGR] - Fix a possible null pointer dereference. CID
 515158

svn path=/trunk/; revision=73770
---
 reactos/base/services/umpnpmgr/umpnpmgr.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/reactos/base/services/umpnpmgr/umpnpmgr.c b/reactos/base/services/umpnpmgr/umpnpmgr.c
index 03fd855c946..e1e7e5c5573 100644
--- a/reactos/base/services/umpnpmgr/umpnpmgr.c
+++ b/reactos/base/services/umpnpmgr/umpnpmgr.c
@@ -993,7 +993,9 @@ PNP_GetDeviceRegProp(
     }
 
 done:
-    *pulTransferLen = (ret == CR_SUCCESS) ? *pulLength : 0;
+
+    if(pulTransferLen)
+        *pulTransferLen = (ret == CR_SUCCESS) ? *pulLength : 0;
 
     if (hKey != NULL)
         RegCloseKey(hKey);