Bluetooth: Make mgmt_index_added() and mgmt_index_removed() return void

The return value from mgmt_index_added() and mgmt_index_removed()
functions is never used. So do not pretend that returning an error
would actually be handled and just make both functions return void.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 3f628fd..811c411 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -3782,24 +3782,24 @@
 	return err;
 }
 
-int mgmt_index_added(struct hci_dev *hdev)
+void mgmt_index_added(struct hci_dev *hdev)
 {
 	if (hdev->dev_type != HCI_BREDR)
-		return -ENOTSUPP;
+		return;
 
-	return mgmt_event(MGMT_EV_INDEX_ADDED, hdev, NULL, 0, NULL);
+	mgmt_event(MGMT_EV_INDEX_ADDED, hdev, NULL, 0, NULL);
 }
 
-int mgmt_index_removed(struct hci_dev *hdev)
+void mgmt_index_removed(struct hci_dev *hdev)
 {
 	u8 status = MGMT_STATUS_INVALID_INDEX;
 
 	if (hdev->dev_type != HCI_BREDR)
-		return -ENOTSUPP;
+		return;
 
 	mgmt_pending_foreach(0, hdev, cmd_status_rsp, &status);
 
-	return mgmt_event(MGMT_EV_INDEX_REMOVED, hdev, NULL, 0, NULL);
+	mgmt_event(MGMT_EV_INDEX_REMOVED, hdev, NULL, 0, NULL);
 }
 
 static void set_bredr_scan(struct hci_request *req)