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

[Juergen Gross]

On 21/06/18 19:29, 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>
> Cc: stable@xxxxxxxxxxxxxxx

Pushed to xen/tip.git for-linus-4.18


Juergen