From 65f97838084a5b1541f80c5ab4236495ae9b3ce0 Mon Sep 17 00:00:00 2001
From: Pierre Schweitzer <pierre@reactos.org>
Date: Fri, 17 Aug 2018 19:12:30 +0200
Subject: [PATCH] [NTOSKRNL] Properly initialize the IO_STATUS_BLOCK

---
 ntoskrnl/fsrtl/fastio.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/ntoskrnl/fsrtl/fastio.c b/ntoskrnl/fsrtl/fastio.c
index d3ea273a128..c9ff2f03752 100644
--- a/ntoskrnl/fsrtl/fastio.c
+++ b/ntoskrnl/fsrtl/fastio.c
@@ -310,11 +310,13 @@ FsRtlCopyWrite(IN PFILE_OBJECT FileObject,
         return FALSE;
     }
 
+    /* Already init IO_STATUS_BLOCK */
+    IoStatus->Status = STATUS_SUCCESS;
+    IoStatus->Information = Length;
+
     /* No actual read */
     if (!Length)
     {
-        IoStatus->Status = STATUS_SUCCESS;
-        IoStatus->Information = Length;
         return TRUE;
     }