Windows System Software -- Consulting, Training, Development -- Unique Expertise, Guaranteed Results

Home NTDEV
Before Posting...
Please check out the Community Guidelines in the Announcements and Administration Category.

More Info on Driver Writing and Debugging


The free OSR Learning Library has more than 50 articles on a wide variety of topics about writing and debugging device drivers and Minifilters. From introductory level to advanced. All the articles have been recently reviewed and updated, and are written using the clear and definitive style you've come to expect from OSR over the years.


Check out The OSR Learning Library at: https://www.osr.com/osr-learning-library/


Writing Kernel Mode DLLs with Unload

massoud_navabmassoud_navab Member Posts: 261
I followed the example
http://www.osronline.com/article.cfm?id=171

Plus added
NTSTATUS
DriverEntry(IN PDRIVER_OBJECT DriverObject, IN PUNICODE_STRING RegistryPath)
{
UNREFERENCED_PARAMETER(RegistryPath);
DriverObject->DriverUnload = Unload;
return STATUS_SUCCESS;
}

VOID Unload(
_In_ struct _DRIVER_OBJECT *DriverObject
)
{
UNREFERENCED_PARAMETER(DriverObject);
return;
}

Export driver works, but after I unload my main driver, export driver stays loaded, no calls to Unload.

I am sure there are no pending refs to the export driver, what is missing to make sure
the export driver unloads when no longer needed?

thanks,

Comments

Sign In or Register to comment.

Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!

Upcoming OSR Seminars
OSR has suspended in-person seminars due to the Covid-19 outbreak. But, don't miss your training! Attend via the internet instead!
Kernel Debugging 30 Mar 2020 OSR Seminar Space
Developing Minifilters 15 Jun 2020 LIVE ONLINE
Writing WDF Drivers 22 June 2020 LIVE ONLINE
Internals & Software Drivers 28 Sept 2020 Dulles, VA