[fireball] 22992: - Remove IopGetLowestDevice() call from IoRegisterDeviceInterface() (hpoussin approved this change) - Add a few DPRINTs to easier see failures of exported APIs

Author: fireball
Date: Mon Jul 10 13:54:50 2006
New Revision: 22992

URL: http://svn.reactos.org/svn/reactos?rev=22992&view=rev
Log:
- Remove IopGetLowestDevice() call from IoRegisterDeviceInterface() (hpoussin approved
this change)
- Add a few DPRINTs to easier see failures of exported APIs

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/…
==============================================================================
--- trunk/reactos/ntoskrnl/include/internal/io.h (original)
+++ trunk/reactos/ntoskrnl/include/internal/io.h Mon Jul 10 13:54:50 2006
@@ -542,13 +542,7 @@
     VOID
 );
 
-PDEVICE_OBJECT
-NTAPI
-IopGetLowestDevice(
-    IN PDEVICE_OBJECT DeviceObject
-);
-
-NTSTATUS
+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 13:54:50 2006
@@ -634,8 +634,10 @@
 
     ASSERT_IRQL(PASSIVE_LEVEL);
 
+    DPRINT("IoRegisterDeviceInterface(): PDO %p, RefString: %p, SLName: %p\n",
+        PhysicalDeviceObject, ReferenceString, SymbolicLinkName);
+
     /* Parameters must pass three border of checks */
-    PhysicalDeviceObject = IopGetLowestDevice(PhysicalDeviceObject);
     DeviceObjectExtension =
(PEXTENDED_DEVOBJ_EXTENSION)PhysicalDeviceObject->DeviceObjectExtension;
 
     /* 1st level: Presence of a Device Node */
@@ -977,7 +979,10 @@
     StartPosition = wcschr(SymbolicLinkName->Buffer, L'{');
     EndPosition = wcschr(SymbolicLinkName->Buffer, L'}');
     if (!StartPosition ||!EndPosition || StartPosition > EndPosition)
+    {
+        DPRINT("IoSetDeviceInterfaceState() returning
STATUS_INVALID_PARAMETER_1\n");
         return STATUS_INVALID_PARAMETER_1;
+    }
     GuidString.Buffer = StartPosition;
     GuidString.MaximumLength = GuidString.Length = (ULONG_PTR)(EndPosition + 1) -
(ULONG_PTR)StartPosition;
 
@@ -997,6 +1002,7 @@
         &PhysicalDeviceObject);
     if (!NT_SUCCESS(Status))
     {
+        DPRINT("IoGetDeviceObjectPointer() failed with status 0x%08lx\n",
Status);
         ExFreePool(ObjectName.Buffer);
         return Status;
     }