[hpoussin] 27153: Do not create a new device node if we already know the PDO

Author: hpoussin
Date: Tue Jun 12 12:38:32 2007
New Revision: 27153
URL: http://svn.reactos.org/svn/reactos?rev=27153&view=rev
Log:
Do not create a new device node if we already know the PDO
Modified:
    trunk/reactos/ntoskrnl/io/iomgr/driver.c
    trunk/reactos/ntoskrnl/io/pnpmgr/plugplay.c
    trunk/reactos/ntoskrnl/io/pnpmgr/pnpmgr.c
Modified: trunk/reactos/ntoskrnl/io/iomgr/driver.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/io/iomgr/driver.c…
==============================================================================
--- trunk/reactos/ntoskrnl/io/iomgr/driver.c (original)
+++ trunk/reactos/ntoskrnl/io/iomgr/driver.c Tue Jun 12 12:38:32 2007
@@ -135,7 +135,7 @@
    if (!NT_SUCCESS(Status))
    {
-      DPRINT1("Failed to reference driver object, status=0x%08x\n", Status);
+      DPRINT("Failed to reference driver object, status=0x%08x\n", Status);
       return Status;
    }
Modified: trunk/reactos/ntoskrnl/io/pnpmgr/plugplay.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/io/pnpmgr/plugpla…
==============================================================================
--- trunk/reactos/ntoskrnl/io/pnpmgr/plugplay.c (original)
+++ trunk/reactos/ntoskrnl/io/pnpmgr/plugplay.c Tue Jun 12 12:38:32 2007
@@ -694,7 +694,7 @@
     if (DeviceObject == NULL)
         return STATUS_NO_SUCH_DEVICE;
-    DeviceNode =
((PEXTENDED_DEVOBJ_EXTENSION)DeviceObject->DeviceObjectExtension)->DeviceNode;
+    DeviceNode = IopGetDeviceNode(DeviceObject);
     switch (Operation)
     {
Modified: trunk/reactos/ntoskrnl/io/pnpmgr/pnpmgr.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/io/pnpmgr/pnpmgr.…
==============================================================================
--- trunk/reactos/ntoskrnl/io/pnpmgr/pnpmgr.c (original)
+++ trunk/reactos/ntoskrnl/io/pnpmgr/pnpmgr.c Tue Jun 12 12:38:32 2007
@@ -2574,6 +2574,11 @@
      */
     for (i = 0; i < DeviceRelations->Count; i++)
     {
+        if (IopGetDeviceNode(DeviceRelations->Objects[i]) != NULL)
+        {
+            ObDereferenceObject(DeviceRelations->Objects[i]);
+            continue;
+        }
         Status = IopCreateDeviceNode(
             DeviceNode,
             DeviceRelations->Objects[i],