irq: change ->set_affinity() to return status

[deliverable/linux.git] / drivers / xen / events.c

diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index 30963af5dba02960143f9ebf37b6f85d44de0dec..33389880279bf8cbb20a8b0faeae6fe1e014a27e 100644 (file)
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -688,13 +688,13 @@ void rebind_evtchn_irq(int evtchn, int irq)
 }
 
 /* Rebind an evtchn so that it gets delivered to a specific cpu */
-static void rebind_irq_to_cpu(unsigned irq, unsigned tcpu)
+static int rebind_irq_to_cpu(unsigned irq, unsigned tcpu)
 {
        struct evtchn_bind_vcpu bind_vcpu;
        int evtchn = evtchn_from_irq(irq);
 
        if (!VALID_EVTCHN(evtchn))
-               return;
+               return -1;
 
        /* Send future instances of this interrupt to other vcpu. */
        bind_vcpu.port = evtchn;
@@ -707,13 +707,15 @@ static void rebind_irq_to_cpu(unsigned irq, unsigned tcpu)
         */
        if (HYPERVISOR_event_channel_op(EVTCHNOP_bind_vcpu, &bind_vcpu) >= 0)
                bind_evtchn_to_cpu(evtchn, tcpu);
-}
 
+       return 0;
+}
 
-static void set_affinity_irq(unsigned irq, const struct cpumask *dest)
+static int set_affinity_irq(unsigned irq, const struct cpumask *dest)
 {
        unsigned tcpu = cpumask_first(dest);
-       rebind_irq_to_cpu(irq, tcpu);
+
+       return rebind_irq_to_cpu(irq, tcpu);
 }
 
 int resend_irq_on_evtchn(unsigned int irq)