xen: set irq_chip disable

By default, the irq_chip.disable operation is a no-op.  Explicitly set
it to disable the Xen event channel.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index 3141e149d595..7c3705479ea1 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -820,8 +820,11 @@ void xen_irq_resume(void)
 
 static struct irq_chip xen_dynamic_chip __read_mostly = {
         .name           = "xen-dyn",
+
+        .disable        = disable_dynirq,
         .mask           = disable_dynirq,
         .unmask         = enable_dynirq,
+
         .ack            = ack_dynirq,
         .set_affinity   = set_affinity_irq,
         .retrigger      = retrigger_dynirq,