From 5c678a76a6fd9e40628be98a3e9526d3bbf49252 Mon Sep 17 00:00:00 2001
From: Pierre Schweitzer <pierre@reactos.org>
Date: Fri, 13 Sep 2019 19:55:53 +0200
Subject: [PATCH] [MOUNTMGR] Fix broken check

Only mark volume mounted if it's not waiting for unloading

CORE-13882
---
 drivers/filters/mountmgr/database.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/filters/mountmgr/database.c b/drivers/filters/mountmgr/database.c
index 6b760a135f0..aa0c6a42ef5 100644
--- a/drivers/filters/mountmgr/database.c
+++ b/drivers/filters/mountmgr/database.c
@@ -624,9 +624,10 @@ ReconcileThisDatabaseWithMasterWorker(IN PVOID Parameter)
         goto ReleaseRDS;
     }
 
-    if (DeviceObject->Flags & 1)
+    /* Mark mounted only if not unloading */
+    if (!(DeviceObject->Flags & DO_UNLOAD_PENDING))
     {
-        _InterlockedExchangeAdd(&ListDeviceInfo->MountState, 1u);
+        InterlockedExchangeAdd(&ListDeviceInfo->MountState, 1);
     }
 
     ObDereferenceObject(FileObject);
-- 
2.17.1