[fireball] 42592: - Rewrite failure branch of IopLoadUnloadDriver to return a real status code instead of always hardcoding it to STATUS_IMAGE_ALREADY_LOADED (r42473) and remove unneeded code duplication.

Author: fireball
Date: Mon Aug 10 16:03:01 2009
New Revision: 42592

URL: http://svn.reactos.org/svn/reactos?rev=42592&view=rev
Log:
- Rewrite failure branch of IopLoadUnloadDriver to return a real status code instead of always hardcoding it to STATUS_IMAGE_ALREADY_LOADED (r42473) and remove unneeded code duplication.

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 Aug 10 16:03:01 2009
@@ -1775,20 +1775,24 @@

/* Store its DriverSection, so that it could be unloaded */
        DriverObject->DriverSection = ModuleObject;
+
+       /* Initialize and start device */
+       IopInitializeDevice(DeviceNode, DriverObject);
+       Status = IopStartDevice(DeviceNode);
    }
    else
    {
       DPRINT("DriverObject already exist in ObjectManager\n");
-      /* IopGetDriverObject references the DriverObject, so dereference it. */
+
+      /* IopGetDriverObject references the DriverObject, so dereference it */
       ObDereferenceObject(DriverObject);
+
+      /* Free device node since driver loading failed */
       IopFreeDeviceNode(DeviceNode);
-      LoadParams->Status = STATUS_IMAGE_ALREADY_LOADED;
-      (VOID)KeSetEvent(&LoadParams->Event, 0, FALSE);
-      return;
-   }
-
-   IopInitializeDevice(DeviceNode, DriverObject);
-   LoadParams->Status = IopStartDevice(DeviceNode);
+   }
+
+   /* Pass status to the caller and signal the event */
+   LoadParams->Status = Status;
    (VOID)KeSetEvent(&LoadParams->Event, 0, FALSE);
 }