From 52d2b0fff1fb83dcacc9d08fec5acfbbdf6ad5da Mon Sep 17 00:00:00 2001
From: Pierre Schweitzer <pierre@reactos.org>
Date: Sat, 3 Jun 2017 21:50:29 +0000
Subject: [PATCH] [UDFS] Revert r74780: it indeed works here, but when the
 problem happens in other places (it does!) where it cannot be solved that
 way, we're doomed. It will be required to find an appropriate solution...

CORE-4375

svn path=/trunk/; revision=74805
---
 reactos/drivers/filesystems/udfs/close.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/reactos/drivers/filesystems/udfs/close.cpp b/reactos/drivers/filesystems/udfs/close.cpp
index 7923958b457..fe4dfc976d9 100644
--- a/reactos/drivers/filesystems/udfs/close.cpp
+++ b/reactos/drivers/filesystems/udfs/close.cpp
@@ -1109,6 +1109,7 @@ UDFQueueDelayedClose(
 {
     PtrUDFIrpContextLite    IrpContextLite;
     BOOLEAN                 StartWorker = FALSE;
+    BOOLEAN                 AcquiredVcb = FALSE;
     NTSTATUS                RC;
 
     AdPrint(("  UDFQueueDelayedClose\n"));
@@ -1118,6 +1119,7 @@ UDFQueueDelayedClose(
         UDFAcquireResourceExclusive(&(UDFGlobalData.DelayedCloseResource), TRUE);
 
         UDFAcquireResourceShared(&(Fcb->Vcb->VCBResource), TRUE);
+        AcquiredVcb = TRUE;
 
         if(Fcb->FCBFlags & UDF_FCB_DELETE_ON_CLOSE) {
             try_return(RC = STATUS_DELETE_PENDING);
@@ -1181,7 +1183,9 @@ try_exit:    NOTHING;
         if(!NT_SUCCESS(RC)) {
             Fcb->FCBFlags &= ~UDF_FCB_DELAY_CLOSE;
         }
-        UDFReleaseResource(&(Fcb->Vcb->VCBResource));
+        if(AcquiredVcb) {
+            UDFReleaseResource(&(Fcb->Vcb->VCBResource));
+        }
         // Release DelayedCloseResource
         UDFReleaseResource(&(UDFGlobalData.DelayedCloseResource));
     } _SEH2_END;