kobj->state = &device->states[i];
                init_completion(&kobj->kobj_unregister);
 
-               kobj->kobj.parent = &device->kobj;
-               kobj->kobj.ktype = &ktype_state_cpuidle;
-               kobject_set_name(&kobj->kobj, "state%d", i);
-               ret = kobject_register(&kobj->kobj);
+               ret = kobject_init_and_add(&kobj->kobj, &ktype_state_cpuidle, &device->kobj,
+                                          "state%d", i);
                if (ret) {
                        kfree(kobj);
                        goto error_state;
                }
+               kobject_uevent(&kobj->kobj, KOBJ_ADD);
                device->kobjs[i] = kobj;
        }
 
 {
        int cpu = sysdev->id;
        struct cpuidle_device *dev;
+       int error;
 
        dev = per_cpu(cpuidle_devices, cpu);
-       dev->kobj.parent = &sysdev->kobj;
-       dev->kobj.ktype = &ktype_cpuidle;
-       kobject_set_name(&dev->kobj, "%s", "cpuidle");
-       return kobject_register(&dev->kobj);
+       error = kobject_init_and_add(&dev->kobj, &ktype_cpuidle, &sysdev->kobj,
+                                    "cpuidle");
+       if (!error)
+               kobject_uevent(&dev->kobj, KOBJ_ADD);
+       return error;
 }
 
 /**