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 e5c12af89ce761084481283634723629046518a9..acb8e5dcebf247b4b34bd9720bb44dce66910312 100644 (file)
--- a/sys/xen/xen_intr.c
+++ b/sys/xen/xen_intr.c
@@ -1525,6 +1525,11 @@ 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);
 }