xen: events: separate two unrelated halves of if condition

Clarifies which bit the comment applies to.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

1 files changed, 8 insertions, 4 deletions

diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index 6befe6227159..684b0950538a 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -1143,10 +1143,14 @@ static int rebind_irq_to_cpu(unsigned irq, unsigned tcpu)
         struct evtchn_bind_vcpu bind_vcpu;
         int evtchn = evtchn_from_irq(irq);
 
-        /* events delivered via platform PCI interrupts are always
-         * routed to vcpu 0 */
-        if (!VALID_EVTCHN(evtchn) ||
-                (xen_hvm_domain() && !xen_have_vector_callback))
+        if (!VALID_EVTCHN(evtchn))
+                return -1;
+
+        /*
+         * Events delivered via platform PCI interrupts are always
+         * routed to vcpu 0 and hence cannot be rebound.
+         */
+        if (xen_hvm_domain() && !xen_have_vector_callback)
                 return -1;
 
         /* Send future instances of this interrupt to other vcpu. */