xen/intr: unmask the event channel when we have added a new handler

diff --git a/sys/xen/xen_intr.c b/sys/xen/xen_intr.c
index 8063c10b612568d3690f0fccc0f68593b2611c92..caef909cb775b26292674b60c44d99c126959469 100644 (file)
--- a/sys/xen/xen_intr.c
+++ b/sys/xen/xen_intr.c
@@ -1533,6 +1533,11 @@ xen_intr_add_handler(device_t dev, driver_filter_t filter,
                    error);
        }
 
+       /* Unmask the event channel if the handler has been correctly added */
+       if (error == 0)
+               evtchn_unmask_port(isrc->xi_port);
+
+
        return (error);
 }