Bluetooth: mgmt: Fix set_local_name and set_dev_class powered checks

Both the Set Local Name and the Set Device Class commands should fail if
the adapter is not powered on.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>

net/bluetooth/mgmt.c

@@ -1272,6 +1272,12 @@ static int set_dev_class(struct sock *sk, u16 index, void *data, u16 len)
 
 	hci_dev_lock(hdev);
 
+	if (!hdev_is_powered(hdev)) {
+		err = cmd_status(sk, index, MGMT_OP_SET_DEV_CLASS,
+						MGMT_STATUS_NOT_POWERED);
+		goto unlock;
+	}
+
 	hdev->major_class = cp->major;
 	hdev->minor_class = cp->minor;
 
@@ -1288,6 +1294,7 @@ static int set_dev_class(struct sock *sk, u16 index, void *data, u16 len)
 		err = cmd_complete(sk, index, MGMT_OP_SET_DEV_CLASS, 0,
 								NULL, 0);
 
+unlock:
 	hci_dev_unlock(hdev);
 	hci_dev_put(hdev);
 
@@ -2076,6 +2083,12 @@ static int set_local_name(struct sock *sk, u16 index, void *data,
 
 	hci_dev_lock(hdev);
 
+	if (!hdev_is_powered(hdev)) {
+		err = cmd_status(sk, index, MGMT_OP_SET_LOCAL_NAME,
+						MGMT_STATUS_NOT_POWERED);
+		goto failed;
+	}
+
 	cmd = mgmt_pending_add(sk, MGMT_OP_SET_LOCAL_NAME, hdev, data,
 									len);
 	if (!cmd) {