qom: object: move unparenting to the child property's release callback

This ensures that the unparent callback is called automatically
when the parent object is finalized.

Note that there's no need to keep a reference neither in
object_unparent nor in object_finalize_child_property.  The
reference held by the child property itself will do.

Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2014-06-11 11:57:38 +02:00
parent 76a6e1cc7c
commit bffc687d66

View File

@ -387,19 +387,9 @@ static void object_property_del_child(Object *obj, Object *child, Error **errp)
void object_unparent(Object *obj)
{
if (!obj->parent) {
return;
}
object_ref(obj);
if (obj->class->unparent) {
(obj->class->unparent)(obj);
}
if (obj->parent) {
object_property_del_child(obj->parent, obj, NULL);
obj->parent = NULL;
}
object_unref(obj);
}
static void object_deinit(Object *obj, TypeImpl *type)
@ -1042,6 +1032,10 @@ static void object_finalize_child_property(Object *obj, const char *name,
{
Object *child = opaque;
if (child->class->unparent) {
(child->class->unparent)(child);
}
child->parent = NULL;
object_unref(child);
}