From 02a4d3641e91a53b90bf213303cc1e20e140725b Mon Sep 17 00:00:00 2001
From: Bill Zissimopoulos <billziss@navimatics.com>
Date: Fri, 7 Sep 2018 16:38:31 -0700
Subject: [PATCH] sys: implement FastIo operations

FspFastIoQueryOpen: return FALSE when RelatedFileObject is not NULL
---
 src/sys/fileinfo.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/sys/fileinfo.c b/src/sys/fileinfo.c
index c7658d48..aaaa2fb8 100644
--- a/src/sys/fileinfo.c
+++ b/src/sys/fileinfo.c
@@ -1897,6 +1897,10 @@ BOOLEAN FspFastIoQueryOpen(
     PFILE_OBJECT FileObject = IrpSp->FileObject;
     FSP_FSCTL_FILE_INFO FileInfoBuf;
 
+    if (0 != FileObject->RelatedFileObject)
+        /* sorry, no can do relative opens in here */
+        FSP_RETURN(Result = FALSE);
+
     Result = FspFileNodeTryGetFileInfoByName(IrpSp->DeviceObject, &FileObject->FileName, &FileInfoBuf);
     if (Result)
     {