Kobject: convert fs/char_dev.c to use kobject_init/add_ng()

This converts the code to use the new kobject functions, cleaning up the
logic in doing so.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

fs/char_dev.c

@@ -510,9 +510,8 @@ struct cdev *cdev_alloc(void)
 {
 	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 @@ void cdev_init(struct cdev *cdev, const struct file_operations *fops)
 {
 	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;
 }