I create an Irp (and an associated Urb). Before passing Irp/Urb down the
stack, I set a completion routine and I acquire a RemoveLock with
IoAcquireRemoveLock. I release the lock in the completion routine with
IoReleaseRemoveLock.
But there are situations when I'd like to cancel the Irp. If I do, how can I
be sure that the lock is released? Is the reference to the lock
automatically removed if the Irp is canceled?

By the way, I use Oney's generic.sys as a base, which does initialize the
RemoveLock. I don't know if it does anything special to release "orphan"
locks.

Thanks in advance,
Dennis

If you cancel the IRP, its completion routine will be eventually called.

"Dennis Burns" <dburns@rtessentials.com> wrote in message
news:OIpnE54sEHA.3580@TK2MSFTNGP10.phx.gbl...

Hello Alexander,
Thanks for the help,
Dennis

"Alexander Grigoriev" <alegr@earthlink.net> wrote in message
news:u6XOAh5sEHA.1216@TK2MSFTNGP10.phx.gbl...