From e2be36788716b711e6640b765e1ec52c35be8987 Mon Sep 17 00:00:00 2001
From: Johannes Anderwald <johannes.anderwald@reactos.org>
Date: Tue, 1 Jun 2010 09:52:16 +0000
Subject: [PATCH] [NPFS] - Check if MmGetSystemAddressForMdlSafe failed

svn path=/trunk/; revision=47512
---
 reactos/drivers/filesystems/npfs/rw.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/reactos/drivers/filesystems/npfs/rw.c b/reactos/drivers/filesystems/npfs/rw.c
index 6f8675ed754..5a03977a788 100644
--- a/reactos/drivers/filesystems/npfs/rw.c
+++ b/reactos/drivers/filesystems/npfs/rw.c
@@ -781,7 +781,16 @@ NpfsWrite(PDEVICE_OBJECT DeviceObject,
     }
 
     Status = STATUS_SUCCESS;
-    Buffer = MmGetSystemAddressForMdl (Irp->MdlAddress);
+    Buffer = MmGetSystemAddressForMdlSafe (Irp->MdlAddress, NormalPagePriority);
+
+    if (!Buffer)
+    {
+        DPRINT("MmGetSystemAddressForMdlSafe failed\n");
+        Status = STATUS_INSUFFICIENT_RESOURCES;
+        Length = 0;
+        goto done;
+
+    }
 
     ExAcquireFastMutex(&ReaderCcb->DataListLock);
 
-- 
2.17.1