android_kernel_oneplus_msm8998/drivers/xen/events
Boris Ostrovsky 009aa1cd67 xen: Remove unnecessary BUG_ON from __unbind_from_irq()
commit eef04c7b3786ff0c9cb1019278b6c6c2ea0ad4ff upstream.

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@codethink.co.uk>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: stable@vger.kernel.org
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-03 11:21:34 +02:00
..
events_2l.c xen/events: Clear cpu_evtchn_mask before resuming 2015-05-05 18:27:11 +01:00
events_base.c xen: Remove unnecessary BUG_ON from __unbind_from_irq() 2018-07-03 11:21:34 +02:00
events_fifo.c xen/events/fifo: Consume unprocessed events when a CPU dies 2015-12-02 13:23:25 +00:00
events_internal.h Revert "xen/events/fifo: Handle linked events when closing a port" 2015-08-11 11:05:42 +01:00
Makefile xen/events: use the FIFO-based ABI if available 2014-01-06 10:07:57 -05:00