s390x/sclpconsole: Remove dead code - remove exit handlers

The other event handlers (quiesce and cpu) do not define these
handlers, and this one does nothing, so it can be removed.
Signed-off-by: NNia Alarie <nia.alarie@gmail.com>
Reviewed-by: NChristian Borntraeger <borntraeger@de.ibm.com>
Message-Id: <20180306100721.19419-1-nia.alarie@gmail.com>
Signed-off-by: NCornelia Huck <cohuck@redhat.com>

hw/char/sclpconsole-lm.c

@@ -318,11 +318,6 @@ static int console_init(SCLPEvent *event)
     return 0;
 }
 
-static int console_exit(SCLPEvent *event)
-{
-    return 0;
-}
-
 static void console_reset(DeviceState *dev)
 {
    SCLPEvent *event = SCLP_EVENT(dev);
@@ -349,7 +344,6 @@ static void console_class_init(ObjectClass *klass, void *data)
     dc->reset = console_reset;
     dc->vmsd = &vmstate_sclplmconsole;
     ec->init = console_init;
-    ec->exit = console_exit;
     ec->get_send_mask = send_mask;
     ec->get_receive_mask = receive_mask;
     ec->can_handle_event = can_handle_event;

hw/char/sclpconsole.c

@@ -246,11 +246,6 @@ static void console_reset(DeviceState *dev)
    scon->notify = false;
 }
 
-static int console_exit(SCLPEvent *event)
-{
-    return 0;
-}
-
 static Property console_properties[] = {
     DEFINE_PROP_CHR("chardev", SCLPConsole, chr),
     DEFINE_PROP_END_OF_LIST(),
@@ -265,7 +260,6 @@ static void console_class_init(ObjectClass *klass, void *data)
     dc->reset = console_reset;
     dc->vmsd = &vmstate_sclpconsole;
     ec->init = console_init;
-    ec->exit = console_exit;
     ec->get_send_mask = send_mask;
     ec->get_receive_mask = receive_mask;
     ec->can_handle_event = can_handle_event;

hw/s390x/event-facility.c

@@ -431,26 +431,12 @@ static void event_realize(DeviceState *qdev, Error **errp)
     }
 }
 
-static void event_unrealize(DeviceState *qdev, Error **errp)
-{
-    SCLPEvent *event = SCLP_EVENT(qdev);
-    SCLPEventClass *child = SCLP_EVENT_GET_CLASS(event);
-    if (child->exit) {
-        int rc = child->exit(event);
-        if (rc < 0) {
-            error_setg(errp, "SCLP event exit failed.");
-            return;
-        }
-    }
-}
-
 static void event_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
 
     dc->bus_type = TYPE_SCLP_EVENTS_BUS;
     dc->realize = event_realize;
-    dc->unrealize = event_unrealize;
 }
 
 static const TypeInfo sclp_event_type_info = {

include/hw/s390x/event-facility.h

@@ -174,7 +174,6 @@ typedef struct SCLPEvent {
 typedef struct SCLPEventClass {
     DeviceClass parent_class;
     int (*init)(SCLPEvent *event);
-    int (*exit)(SCLPEvent *event);
 
     /* get SCLP's send mask */
     unsigned int (*get_send_mask)(void);