[pschweitzer] 65309: [FASTFAT] Properly check for volume open on lock request

Author: pschweitzer
Date: Fri Nov  7 15:38:31 2014
New Revision: 65309

URL: http://svn.reactos.org/svn/reactos?rev=65309&view=rev
Log:
[FASTFAT]
Properly check for volume open on lock request

Modified:
    trunk/reactos/drivers/filesystems/fastfat/fsctl.c

Modified: trunk/reactos/drivers/filesystems/fastfat/fsctl.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/fastfa…
==============================================================================
--- trunk/reactos/drivers/filesystems/fastfat/fsctl.c	[iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/fastfat/fsctl.c	[iso-8859-1] Fri Nov  7 15:38:31
2014
@@ -865,14 +865,16 @@
 {
     PFILE_OBJECT FileObject;
     PDEVICE_EXTENSION DeviceExt;
+    PVFATFCB Fcb;
 
     DPRINT("VfatLockOrUnlockVolume(%p, %d)\n", IrpContext, Lock);
 
     DeviceExt = IrpContext->DeviceExt;
     FileObject = IrpContext->FileObject;
+    Fcb = FileObject->FsContext;
 
     /* Only allow locking with the volume open */
-    if (FileObject->FsContext != DeviceExt->VolumeFcb)
+    if (!(Fcb->Flags & FCB_IS_VOLUME))
     {
         return STATUS_ACCESS_DENIED;
     }