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| author | Boris Ostrovsky <boris.ostrovsky@oracle.com> | 2018-06-21 13:29:44 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-07-03 11:18:48 +0200 |
| commit | 5893d17706eb020d94fb159c08274659b977f5df (patch) | |
| tree | f82445bf8fb54986f7afeb9aa4954a04a8a877b3 /drivers/xen | |
| parent | 7568ba6cc40986d9553820da9468f94d0591942b (diff) | |
| download | linux-stable-5893d17706eb020d94fb159c08274659b977f5df.tar.gz linux-stable-5893d17706eb020d94fb159c08274659b977f5df.tar.bz2 linux-stable-5893d17706eb020d94fb159c08274659b977f5df.zip | |
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>
Diffstat (limited to 'drivers/xen')
| -rw-r--r-- | drivers/xen/events/events_base.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c index e2db7a774687..f7297217b83c 100644 --- a/drivers/xen/events/events_base.c +++ b/drivers/xen/events/events_base.c @@ -636,8 +636,6 @@ static void __unbind_from_irq(unsigned int irq) xen_irq_info_cleanup(info); } - BUG_ON(info_for_irq(irq)->type == IRQT_UNBOUND); - xen_free_irq(irq); } |