[hpoussin] 22982: First argument doesn't need to be a physical device object, it only needs to be in a PDO driver stack.

Author: hpoussin
Date: Mon Jul 10 02:08:24 2006
New Revision: 22982

URL: http://svn.reactos.org/svn/reactos?rev=22982&view=rev
Log:
First argument doesn't need to be a physical device object, it only needs to be in a PDO driver stack.

Modified:
    trunk/reactos/ntoskrnl/include/internal/io.h
    trunk/reactos/ntoskrnl/io/iomgr/deviface.c

Modified: trunk/reactos/ntoskrnl/include/internal/io.h
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/include/internal/i...
==============================================================================
--- trunk/reactos/ntoskrnl/include/internal/io.h (original)
+++ trunk/reactos/ntoskrnl/include/internal/io.h Mon Jul 10 02:08:24 2006
@@ -542,7 +542,13 @@
     VOID
 );

-NTSTATUS 
+PDEVICE_OBJECT
+NTAPI
+IopGetLowestDevice(
+    IN PDEVICE_OBJECT DeviceObject
+);
+
+NTSTATUS
 INIT_FUNCTION
 IopInitPlugPlayEvents(VOID);

Modified: trunk/reactos/ntoskrnl/io/iomgr/deviface.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/io/iomgr/deviface....
==============================================================================
--- trunk/reactos/ntoskrnl/io/iomgr/deviface.c (original)
+++ trunk/reactos/ntoskrnl/io/iomgr/deviface.c Mon Jul 10 02:08:24 2006
@@ -635,6 +635,7 @@
     ASSERT_IRQL(PASSIVE_LEVEL);

/* Parameters must pass three border of checks */
+    PhysicalDeviceObject = IopGetLowestDevice(PhysicalDeviceObject);
     DeviceObjectExtension = (PEXTENDED_DEVOBJ_EXTENSION)PhysicalDeviceObject->DeviceObjectExtension;

/* 1st level: Presence of a Device Node */