SW-Enumerated device requires reset after disable / enable

Hi All. I'm trying to figure out a way to get our our SW-enumerated kmdf driver to not require a reboot upon devcon (device manager) disable/enable. In the driver's EVT_WDF_DRIVER_UNLOAD DriverUnload()
callback, the PointerCount member of the PDO's OBJECT_HEADER is 1. If I stop windbg and look at loaded modules, the driver remains loaded long after the DriverUnload() callback has fired called, making suspect a reference issue.
I've read the articles and have set a ba w4 <pdo_object_hdr> "dd
<pdo_object_hdr> L1;k;g" breakpoint on the PointerCount member (offset 0) and can see its going up and down as the debugger stops at ObfDereferenceObject(), ObfReferenceObject(), IoQueueWorkItem()
and IopProcessWorkItem().
Is it likely that this has anything to do with why the driver would require a reboot after a devcon (or device manager) disable / enable cycle?
Thanks!

this is the reason why the reboot is required. you have a leaked Ob reference somewhere. in your unload routine you should also dump the WDF object tree for your WDFDRIVER and see what remains, perhaps you have leaked an object (and perhaps through a dangling
Wdf reference call)
d -- This posting is provided "AS IS" with no warranties, and confers no rights.

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