[NTOSKRNL]

- Add prints to unloading functions because things seem very wonky here
- This exposes some previously unknown behavior of fastfat actually being unloaded in early boot (with uniata and buslogic failing unload due to missing DriverUnload)

svn path=/trunk/; revision=55773

Author: cgutman

reactos/ntoskrnl/io/iomgr/device.c

@@ -364,6 +364,13 @@ IopUnloadDevice(IN PDEVICE_OBJECT DeviceObject)
     PDEVICE_NODE DeviceNode;
     BOOLEAN SafeToUnload = TRUE;
 
+    /* We can't unload unless there's an unload handler */
+    if (!DriverObject->DriverUnload)
+    {
+        DPRINT1("No DriverUnload function! '%wZ' will not be unloaded!\n", &DriverObject->DriverName);
+        return;
+    }
+
     /* Check if removal is pending */
     ThisExtension = IoGetDevObjExtension(DeviceObject);
     if (ThisExtension->ExtensionFlags & DOE_REMOVE_PENDING)
@@ -463,11 +470,13 @@ IopUnloadDevice(IN PDEVICE_OBJECT DeviceObject)
         DeviceObject = DeviceObject->NextDevice;
     }
 
+    DPRINT1("Unloading driver '%wZ' (automatic)\n", &DriverObject->DriverName);
+
     /* Set the unload invoked flag */
     DriverObject->Flags |= DRVO_UNLOAD_INVOKED;
 
     /* Unload it */
-    if (DriverObject->DriverUnload) DriverObject->DriverUnload(DriverObject);
+    DriverObject->DriverUnload(DriverObject);
 
     /* Make object temporary so it can be deleted */
     ObMakeTemporaryObject(DriverObject);

reactos/ntoskrnl/io/iomgr/driver.c

@@ -58,6 +58,8 @@ IopDeleteDriver(IN PVOID ObjectBody)
     PIO_CLIENT_EXTENSION DriverExtension, NextDriverExtension;
     PAGED_CODE();
 
+    DPRINT1("Deleting driver object '%wZ'\n", &DriverObject->DriverName);
+
     /* Get the extension and loop them */
     DriverExtension = IoGetDrvObjExtension(DriverObject)->
                       ClientDriverExtension;
@@ -1284,6 +1286,8 @@ IopUnloadDriver(PUNICODE_STRING DriverServiceName, BOOLEAN UnloadPnpDrivers)
          return STATUS_SUCCESS;
       }
 
+      DPRINT1("Unloading driver '%wZ' (manual)\n", &DriverObject->DriverName);
+
       /* Set the unload invoked flag */
       DriverObject->Flags |= DRVO_UNLOAD_INVOKED;
 
@@ -1323,6 +1327,8 @@ IopUnloadDriver(PUNICODE_STRING DriverServiceName, BOOLEAN UnloadPnpDrivers)
    }
    else
    {
+      DPRINT1("No DriverUnload function! '%wZ' will not be unloaded!\n", &DriverObject->DriverName);
+
       /* Dereference one time (refd inside this function) */
       ObDereferenceObject(DriverObject);