[cgutman] 55743: [NTOSKRNL] - First check if a driver object exists before trying to load the service module to properly handle boot drivers

Author: cgutman
Date: Mon Feb 20 10:24:14 2012
New Revision: 55743

URL: http://svn.reactos.org/svn/reactos?rev=55743&view=rev
Log:
[NTOSKRNL]
- First check if a driver object exists before trying to load the service module to properly handle boot drivers

Modified:
    trunk/reactos/ntoskrnl/io/iomgr/driver.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 [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/io/iomgr/driver.c [iso-8859-1] Mon Feb 20 10:24:14 2012
@@ -560,35 +560,25 @@
       ServiceName.MaximumLength =
       ServiceName.Length = (USHORT)wcslen(Filters) * sizeof(WCHAR);

-      /* Load and initialize the filter driver */
-      Status = IopLoadServiceModule(&ServiceName, &ModuleObject);
-      if (Status != STATUS_IMAGE_ALREADY_LOADED)
-      {
-         if (!NT_SUCCESS(Status))
-            continue;
-
-         Status = IopInitializeDriverModule(DeviceNode, ModuleObject, &ServiceName,
-                                            FALSE, &DriverObject);
-         if (!NT_SUCCESS(Status))
-            continue;
-      }
-      else
-      {
-         /* get existing DriverObject pointer */
-         Status = IopGetDriverObject(
-            &DriverObject,
-            &ServiceName,
-            FALSE);
-         if (!NT_SUCCESS(Status))
-         {
-            DPRINT1("IopGetDriverObject() returned status 0x%08x!\n", Status);
-            continue;
-         }
-      }
-
-      Status = IopInitializeDevice(DeviceNode, DriverObject);
-      if (!NT_SUCCESS(Status))
-         continue;
+       Status = IopGetDriverObject(&DriverObject,
+                                   &ServiceName,
+                                   FALSE);
+       if (!NT_SUCCESS(Status))
+       {
+           /* Load and initialize the filter driver */
+           Status = IopLoadServiceModule(&ServiceName, &ModuleObject);
+           if (!NT_SUCCESS(Status))
+               continue;
+
+           Status = IopInitializeDriverModule(DeviceNode, ModuleObject, &ServiceName,
+                                              FALSE, &DriverObject);
+           if (!NT_SUCCESS(Status))
+               continue;
+       }
+
+       Status = IopInitializeDevice(DeviceNode, DriverObject);
+       if (!NT_SUCCESS(Status))
+           continue;
    }

return STATUS_SUCCESS;