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xen: set up IRQ before binding virq to evtchn 

Make sure the irq is set up before binding a virq event channel to it.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
This commit is contained in:
Jeremy Fitzhardinge 2010-09-22 15:28:52 -07:00
parent b0097adeec
commit a52521f149
1 changed files with 5 additions and 5 deletions
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10
drivers/xen/events.c
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@ -436,6 +436,11 @@ static int bind_virq_to_irq(unsigned int virq, unsigned int cpu)
irq = per_cpu(virq_to_irq, cpu)[virq];
if (irq == -1) {
irq = find_unbound_irq();
set_irq_chip_and_handler_name(irq, &xen_percpu_chip,
handle_percpu_irq, "virq");
bind_virq.virq = virq;
bind_virq.vcpu = cpu;
if (HYPERVISOR_event_channel_op(EVTCHNOP_bind_virq,
@ -443,11 +448,6 @@ static int bind_virq_to_irq(unsigned int virq, unsigned int cpu)
BUG();
evtchn = bind_virq.port;
irq = find_unbound_irq();
set_irq_chip_and_handler_name(irq, &xen_percpu_chip,
handle_percpu_irq, "virq");
evtchn_to_irq[evtchn] = irq;
irq_info[irq] = mk_virq_info(evtchn, virq);