Bluetooth: mgmt: Fix return value of add/remove_uuid

The Add/Remove UUID commands should return the device class instead of
an empty parameter list.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Gustavo F. Padovan <padovan@profusion.mobi>
Acked-by: Marcel Holtmann <marcel@holtmann.org>

net/bluetooth/mgmt.c

@@ -1367,7 +1367,7 @@ static int add_uuid(struct sock *sk, u16 index, void *data, u16 len)
 	if (err < 0)
 		goto failed;
 
-	err = cmd_complete(sk, index, MGMT_OP_ADD_UUID, 0, NULL, 0);
+	err = cmd_complete(sk, index, MGMT_OP_ADD_UUID, 0, hdev->dev_class, 3);
 
 failed:
 	hci_dev_unlock(hdev);
@@ -1428,7 +1428,8 @@ static int remove_uuid(struct sock *sk, u16 index, void *data, u16 len)
 	if (err < 0)
 		goto unlock;
 
-	err = cmd_complete(sk, index, MGMT_OP_REMOVE_UUID, 0, NULL, 0);
+	err = cmd_complete(sk, index, MGMT_OP_REMOVE_UUID, 0,
+							hdev->dev_class, 3);
 
 unlock:
 	hci_dev_unlock(hdev);