qom: don't require user creatable objects to be registered

When an object is in turn owned by another user object, it is not
desirable to expose this in the QOM object hierarchy. It is just an
internal implementation detail, we should be free to change without
exposure to apps managing QEMU.

Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>

diff --git a/qom/object.c b/qom/object.c
index b8c732063ba25852920f2b1a666184fb216f0180..05a85670418bee9371270ccac7be32b6a594c71c 100644 (file)
--- a/qom/object.c
+++ b/qom/object.c
@@ -646,16 +646,20 @@ Object *object_new_with_propv(const char *typename,
         goto error;
     }
 
-    object_property_add_child(parent, id, obj, &local_err);
-    if (local_err) {
-        goto error;
+    if (id != NULL) {
+        object_property_add_child(parent, id, obj, &local_err);
+        if (local_err) {
+            goto error;
+        }
     }
 
     uc = (UserCreatable *)object_dynamic_cast(obj, TYPE_USER_CREATABLE);
     if (uc) {
         user_creatable_complete(uc, &local_err);
         if (local_err) {
-            object_unparent(obj);
+            if (id != NULL) {
+                object_unparent(obj);
+            }
             goto error;
         }
     }

diff --git a/qom/object_interfaces.c b/qom/object_interfaces.c
index db85d1eb75a05e39425820049a87800b0cbbe950..cb5809934a4e61053ab26465dfc27b43a98edf42 100644 (file)
--- a/qom/object_interfaces.c
+++ b/qom/object_interfaces.c
@@ -75,16 +75,20 @@ Object *user_creatable_add_type(const char *type, const char *id,
         goto out;
     }
 
-    object_property_add_child(object_get_objects_root(),
-                              id, obj, &local_err);
-    if (local_err) {
-        goto out;
+    if (id != NULL) {
+        object_property_add_child(object_get_objects_root(),
+                                  id, obj, &local_err);
+        if (local_err) {
+            goto out;
+        }
     }
 
     user_creatable_complete(USER_CREATABLE(obj), &local_err);
     if (local_err) {
-        object_property_del(object_get_objects_root(),
-                            id, &error_abort);
+        if (id != NULL) {
+            object_property_del(object_get_objects_root(),
+                                id, &error_abort);
+        }
         goto out;
     }
 out: