From eacae1ddd2c4afb25ce718074e5dbdcfc4854eb4 Mon Sep 17 00:00:00 2001
From: short <>
Date: Wed, 26 Mar 2003 00:52:16 +0000
Subject: [PATCH] +sanity check of NULL
 IoGetCurrentIrpStackLocation(Irp)->FileObject

---
 ntoskrnl/io/irp.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ntoskrnl/io/irp.c b/ntoskrnl/io/irp.c
index e967145..8b54d39 100644
--- a/ntoskrnl/io/irp.c
+++ b/ntoskrnl/io/irp.c
@@ -348,6 +348,8 @@ IoIsOperationSynchronous(IN PIRP Irp)
 
   /* Check the FILE_OBJECT's flags first. */
   FileObject = IoGetCurrentIrpStackLocation(Irp)->FileObject;
+  if (FileObject == NULL)
+    KeBugCheck(0);
   if (!(FO_SYNCHRONOUS_IO & FileObject->Flags))
     {
       /* Check IRP's flags. */
-- 
1.8.3.1