diff --git a/drivers/tty/hvc/hvc_xen.c b/drivers/tty/hvc/hvc_xen.c
index 3740e32..c35f1a7 100644
--- a/drivers/tty/hvc/hvc_xen.c
+++ b/drivers/tty/hvc/hvc_xen.c
@@ -177,6 +177,8 @@
 	}
 	if (xencons_irq < 0)
 		xencons_irq = 0; /* NO_IRQ */
+	else
+		set_irq_noprobe(xencons_irq);
 
 	hp = hvc_alloc(HVC_COOKIE, xencons_irq, ops, 256);
 	if (IS_ERR(hp))