Fix bluetooth HCI sysfs compile

More fallout from the removal of "struct subsystem" from the core device
model.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

net/bluetooth/hci_sysfs.c

@@ -322,7 +322,7 @@ int hci_register_sysfs(struct hci_dev *hdev)
 		if (device_create_file(dev, bt_attrs[i]) < 0)
 			BT_ERR("Failed to create device attribute");
 
-	if (sysfs_create_link(&bt_class->subsys.kset.kobj,
+	if (sysfs_create_link(&bt_class->subsys.kobj,
 				&dev->kobj, kobject_name(&dev->kobj)) < 0)
 		BT_ERR("Failed to create class symlink");
 
@@ -333,7 +333,7 @@ void hci_unregister_sysfs(struct hci_dev *hdev)
 {
 	BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type);
 
-	sysfs_remove_link(&bt_class->subsys.kset.kobj,
+	sysfs_remove_link(&bt_class->subsys.kobj,
 					kobject_name(&hdev->dev.kobj));
 
 	device_del(&hdev->dev);