[cgutman] 55773: [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 ...

Author: cgutman
Date: Tue Feb 21 01:26:29 2012
New Revision: 55773

URL: http://svn.reactos.org/svn/reactos?rev=55773&view=rev
Log:
[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)

Modified:
    trunk/reactos/ntoskrnl/io/iomgr/device.c
    trunk/reactos/ntoskrnl/io/iomgr/driver.c

Modified: trunk/reactos/ntoskrnl/io/iomgr/device.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/io/iomgr/device.c?...
==============================================================================
--- trunk/reactos/ntoskrnl/io/iomgr/device.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/io/iomgr/device.c [iso-8859-1] Tue Feb 21 01:26:29 2012
@@ -364,6 +364,13 @@
     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 @@
         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);

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] Tue Feb 21 01:26:29 2012
@@ -57,6 +57,8 @@
     PDRIVER_OBJECT DriverObject = 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)->
@@ -1284,6 +1286,8 @@
          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 @@
    }
    else
    {
+      DPRINT1("No DriverUnload function! '%wZ' will not be unloaded!\n", &DriverObject->DriverName);
+
       /* Dereference one time (refd inside this function) */
       ObDereferenceObject(DriverObject);