[Qemu-devel] [PATCH 1/2] hw/char: remove console_exit function in sclp

[Zihan Yang]

    Currently, the console_exit function in sclpconsole-lm.c and
    sclpconsole.c does nothing, just remove them. Since there is
    a NULL check on the DeviceClass exit callback as suggested by
    Frederic Konrad, it should be safe to simply remove them.

Signed-off-by: Zihan Yang <address@hidden>
---
 hw/char/sclpconsole-lm.c          | 6 ------
 hw/char/sclpconsole.c             | 6 ------
 include/hw/s390x/event-facility.h | 2 +-
 3 files changed, 1 insertion(+), 13 deletions(-)

diff --git a/hw/char/sclpconsole-lm.c b/hw/char/sclpconsole-lm.c
index 07d6ebd..86ddda6 100644
--- a/hw/char/sclpconsole-lm.c
+++ b/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;
diff --git a/hw/char/sclpconsole.c b/hw/char/sclpconsole.c
index b78f240..e916cac 100644
--- a/hw/char/sclpconsole.c
+++ b/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;
diff --git a/include/hw/s390x/event-facility.h 
b/include/hw/s390x/event-facility.h
index def1bb0..1a32f3a 100644
--- a/include/hw/s390x/event-facility.h
+++ b/include/hw/s390x/event-facility.h
@@ -162,7 +162,7 @@ typedef struct SCLPEvent {
 typedef struct SCLPEventClass {
     DeviceClass parent_class;
     int (*init)(SCLPEvent *event);
-    int (*exit)(SCLPEvent *event);
+    void (*exit)(SCLPEvent *event);
 
     /* get SCLP's send mask */
     unsigned int (*get_send_mask)(void);
-- 
2.7.4