Index: ntoskrnl/lpc/close.c
===================================================================
--- ntoskrnl/lpc/close.c	(Revision 56356)
+++ ntoskrnl/lpc/close.c	(Arbeitskopie)
@@ -424,11 +424,21 @@
             }
         }
 
+        /* Check if this is a connection port with a server process*/
+        if (((Port->Flags & LPCP_PORT_TYPE_MASK) == LPCP_CONNECTION_PORT) &&
+            (ConnectionPort->ServerProcess))
+        {
+            /* Dereference the server process */
+            ObDereferenceObject(ConnectionPort->ServerProcess);
+            ConnectionPort->ServerProcess = NULL;
+        }
+
         /* Release the lock */
         KeReleaseGuardedMutex(&LpcpLock);
 
         /* Dereference the object unless it's the same port */
         if (ConnectionPort != Port) ObDereferenceObject(ConnectionPort);
+
     }
     else
     {
@@ -436,15 +446,6 @@
         KeReleaseGuardedMutex(&LpcpLock);
     }
 
-    /* Check if this is a connection port with a server process*/
-    if (((Port->Flags & LPCP_PORT_TYPE_MASK) == LPCP_CONNECTION_PORT) &&
-        (ConnectionPort->ServerProcess))
-    {
-        /* Dereference the server process */
-        ObDereferenceObject(ConnectionPort->ServerProcess);
-        ConnectionPort->ServerProcess = NULL;
-    }
-
     /* Free client security */
     LpcpFreePortClientSecurity(Port);
     LPCTRACE(LPC_CLOSE_DEBUG, "Port: %p deleted\n", Port);