[pschweitzer] 47829: [NTOSKRNL] Move the PDO check in IoOpenDeviceRegistryKey() to the function begin. Requested by sir_richard.

Author: pschweitzer
Date: Tue Jun 22 18:51:22 2010
New Revision: 47829

URL: http://svn.reactos.org/svn/reactos?rev=47829&view=rev
Log:
[NTOSKRNL]
Move the PDO check in IoOpenDeviceRegistryKey() to the function begin.
Requested by sir_richard.

Modified:
    trunk/reactos/ntoskrnl/io/pnpmgr/pnpmgr.c

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 [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/io/pnpmgr/pnpmgr.c [iso-8859-1] Tue Jun 22 18:51:22 2010
@@ -3507,6 +3507,10 @@
        return STATUS_INVALID_PARAMETER;
    }
 
+   if (!IopIsValidPhysicalDeviceObject(DeviceObject))
+       return STATUS_INVALID_DEVICE_REQUEST;
+   DeviceNode = IopGetDeviceNode(DeviceObject);
+
    /*
     * Calculate the length of the base key name. This is the full
     * name for driver key or the name excluding "Device Parameters"
@@ -3527,9 +3531,6 @@
    }
    else
    {
-      if (!IopIsValidPhysicalDeviceObject(DeviceObject))
-          return STATUS_INVALID_DEVICE_REQUEST;
-      DeviceNode = IopGetDeviceNode(DeviceObject);
       KeyNameLength += sizeof(EnumKeyName) - sizeof(UNICODE_NULL) +
                        DeviceNode->InstancePath.Length;
    }