diff --git a/fs/char_dev.c b/fs/char_dev.c
index c3bfa76..b2dd5a0 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -510,9 +510,8 @@
 {
 	struct cdev *p = kzalloc(sizeof(struct cdev), GFP_KERNEL);
 	if (p) {
-		p->kobj.ktype = &ktype_cdev_dynamic;
 		INIT_LIST_HEAD(&p->list);
-		kobject_init(&p->kobj);
+		kobject_init_ng(&p->kobj, &ktype_cdev_dynamic);
 	}
 	return p;
 }
@@ -529,8 +528,7 @@
 {
 	memset(cdev, 0, sizeof *cdev);
 	INIT_LIST_HEAD(&cdev->list);
-	cdev->kobj.ktype = &ktype_cdev_default;
-	kobject_init(&cdev->kobj);
+	kobject_init_ng(&cdev->kobj, &ktype_cdev_default);
 	cdev->ops = fops;
 }