From: Pierre Schweitzer <pierre@reactos.org>
Date: Thu, 25 Feb 2016 20:49:31 +0000 (+0000)
Subject: [NTFS]
X-Git-Tag: ReactOS-0.4.1~428
X-Git-Url: https://git.reactos.org/?p=reactos.git;a=commitdiff_plain;h=0f018769008f556f930483f9d2382628019f106b;hp=6184b009f90aaa52d696eb686453f5fdd57fe181

[NTFS]
Add a missing lock

svn path=/trunk/; revision=70787
---

diff --git a/reactos/drivers/filesystems/ntfs/dirctl.c b/reactos/drivers/filesystems/ntfs/dirctl.c
index c19bf6b77d0..82b8a7cb1b0 100644
--- a/reactos/drivers/filesystems/ntfs/dirctl.c
+++ b/reactos/drivers/filesystems/ntfs/dirctl.c
@@ -363,6 +363,13 @@ NtfsQueryDirectory(PNTFS_IRP_CONTEXT IrpContext)
 
     DPRINT("Buffer=%p tofind=%S\n", Buffer, Ccb->DirectorySearchPattern);
 
+    if (!ExAcquireResourceExclusiveLite(&DeviceExtension->DirResource,
+                                        BooleanFlagOn(IrpContext->Flags, IRPCONTEXT_CANWAIT)))
+    {
+        ExReleaseResourceLite(&Fcb->MainResource);
+        return STATUS_PENDING;
+    }
+
     while (Status == STATUS_SUCCESS && BufferLength > 0)
     {
         Status = NtfsFindFileAt(DeviceExtension,
@@ -469,6 +476,7 @@ NtfsQueryDirectory(PNTFS_IRP_CONTEXT IrpContext)
         Buffer0->NextEntryOffset = 0;
     }
 
+    ExReleaseResourceLite(&DeviceExtension->DirResource);
     ExReleaseResourceLite(&Fcb->MainResource);
 
     if (FileIndex > 0)