Re: [PATCH] xen: Remove unnecessary BUG_ON from __unbind_from_irq()

From: Roger Pau MonnÃ
Date: Fri Jun 22 2018 - 03:09:36 EST


On Thu, Jun 21, 2018 at 01:29:44PM -0400, Boris Ostrovsky wrote:
> Commit 910f8befdf5b ("xen/pirq: fix error path cleanup when binding
> MSIs") fixed a couple of errors in error cleanup path of
> xen_bind_pirq_msi_to_irq(). This cleanup allowed a call to
> __unbind_from_irq() with an unbound irq, which would result in
> triggering the BUG_ON there.
>
> Since there is really no reason for the BUG_ON (xen_free_irq() can
> operate on unbound irqs) we can remove it.
>
> Reported-by: Ben Hutchings <ben.hutchings@xxxxxxxxxxxxxxx>
> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>

Reviewed-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>

Thanks, I had this on my queue of TODOs.