From 9e0a62ad2c8322649abdb56b4951ae18209245bf Mon Sep 17 00:00:00 2001
From: Aleksey Bragin <aleksey@reactos.org>
Date: Tue, 20 Nov 2007 11:53:15 +0000
Subject: [PATCH] - Don't create a possibility for CriticalRegion leakage
 (spotted by PREfast).

svn path=/trunk/; revision=30592
---
 reactos/drivers/filesystems/vfat/misc.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/reactos/drivers/filesystems/vfat/misc.c b/reactos/drivers/filesystems/vfat/misc.c
index 5016486fb1e..b1f61ae97c2 100644
--- a/reactos/drivers/filesystems/vfat/misc.c
+++ b/reactos/drivers/filesystems/vfat/misc.c
@@ -142,6 +142,7 @@ NTSTATUS NTAPI VfatBuildRequest (
 {
    NTSTATUS Status;
    PVFAT_IRP_CONTEXT IrpContext;
+   KIRQL Irql;
 
    DPRINT ("VfatBuildRequest (DeviceObject %x, Irp %x)\n", DeviceObject, Irp);
 
@@ -156,17 +157,18 @@ NTSTATUS NTAPI VfatBuildRequest (
    }
    else
    {
-      if (KeGetCurrentIrql() <= PASSIVE_LEVEL)
+      Irql = KeGetCurrentIrql();
+      if (Irql <= PASSIVE_LEVEL)
       {
          FsRtlEnterFileSystem();
       }
       else
       {
-         DPRINT1("Vfat is entered at irql = %d\n", KeGetCurrentIrql());
+         DPRINT1("Vfat is entered at irql = %d\n", Irql);
       }
       Status = VfatDispatchRequest (IrpContext);
 
-      if (KeGetCurrentIrql() <= PASSIVE_LEVEL)
+      if (Irql <= PASSIVE_LEVEL)
       {
          FsRtlExitFileSystem();
       }