hw/s390x: Mark the "sclpquiesce" device with user_creatable = false

The "sclpquiesce" device is just an internal device that should not be
created by the user directly. Though it currently does not seem to cause
any obvious trouble when the user instantiates an additional device, let's
better mark it with user_creatable = false to avoid unexpected behavior,
e.g. because the quiesce notifier gets registered multiple times.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1507193105-15627-1-git-send-email-thuth@redhat.com>
Reviewed-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>

diff --git a/hw/s390x/sclpquiesce.c b/hw/s390x/sclpquiesce.c
index 762cb184acb949c21386bad6f3dbb498044be8c3..02416435a1abd98a8bec12477a4e92d36e018881 100644 (file)
--- a/hw/s390x/sclpquiesce.c
+++ b/hw/s390x/sclpquiesce.c
@@ -118,8 +118,13 @@ static void quiesce_class_init(ObjectClass *klass, void *data)
     dc->reset = quiesce_reset;
     dc->vmsd = &vmstate_sclpquiesce;
     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
-    k->init = quiesce_init;
+    /*
+     * Reason: This is just an internal device - the notifier should
+     * not be registered multiple times in quiesce_init()
+     */
+    dc->user_creatable = false;
 
+    k->init = quiesce_init;
     k->get_send_mask = send_mask;
     k->get_receive_mask = receive_mask;
     k->can_handle_event = can_handle_event;