qobject: Replace qobject_incref/QINCREF qobject_decref/QDECREF

Now that we can safely call QOBJECT() on QObject * as well as its
subtypes, we can have macros qobject_ref() / qobject_unref() that work
everywhere instead of having to use QINCREF() / QDECREF() for QObject
and qobject_incref() / qobject_decref() for its subtypes.

The replacement is mechanical, except I broke a long line, and added a
cast in monitor_qmp_cleanup_req_queue_locked().  Unlike
qobject_decref(), qobject_unref() doesn't accept void *.

Note that the new macros evaluate their argument exactly once, thus no
need to shout them.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20180419150145.24795-4-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Rebased, semantic conflict resolved, commit message improved]
Signed-off-by: Markus Armbruster <armbru@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/qmp.c b/qmp.c
index f72261667f..9e95b889ff 100644
--- a/qmp.c
+++ b/qmp.c
@@ -710,7 +710,7 @@ void qmp_object_add(const char *type, const char *id,
             error_setg(errp, QERR_INVALID_PARAMETER_TYPE, "props", "dict");
             return;
         }
-        QINCREF(pdict);
+        qobject_ref(pdict);
     } else {
         pdict = qdict_new();
     }
@@ -721,7 +721,7 @@ void qmp_object_add(const char *type, const char *id,
     if (obj) {
         object_unref(obj);
     }
-    QDECREF(pdict);
+    qobject_unref(pdict);
 }
 
 void qmp_object_del(const char *id, Error **errp)