From 4a2d9295d714c64cf33c50d53771927fceb66a05 Mon Sep 17 00:00:00 2001
From: Bill Zissimopoulos <billziss@navimatics.com>
Date: Sat, 5 Dec 2015 11:42:34 -0800
Subject: [PATCH] sys: IRP_MJ_CREATE

---
 src/sys/create.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/sys/create.c b/src/sys/create.c
index 463b487d..6b2d8f6c 100644
--- a/src/sys/create.c
+++ b/src/sys/create.c
@@ -403,12 +403,14 @@ VOID FspFsvolCreateComplete(
     FsContext->UserContext = Response->Rsp.Create.UserContext;
     FileObject->FsContext2 = (PVOID)(UINT_PTR)Response->Rsp.Create.UserContext2;
 
-    /* lock the file system volume device while accessing its generic table */
+    /*
+     * The following must be done under the file system volume device Resource,
+     * because we are manipulating its GenericTable and accessing foreign FsContext's.
+     */
     ExAcquireResourceExclusiveLite(&FsvolDeviceExtension->Base.Resource, TRUE);
     try
     {
-        /* insert the new FsContext into our generic table */
-        Result = STATUS_SUCCESS;
+        /* attempt to insert the newly created FsContext into our generic table */
         FsContext = FspFsvolDeviceInsertContext(DeviceObject,
             FsContext->UserContext, FsContext, &Inserted);
         if (0 == FsContext)
@@ -426,6 +428,7 @@ VOID FspFsvolCreateComplete(
                 IoSetShareAccess(DesiredAccess, ShareAccess, FileObject,
                     &FsContext->ShareAccess);
                 FspFileContextOpen(FsContext);
+                Result = STATUS_SUCCESS;
             }
             else
             {