Bluetooth: Don't bother doing anything if auto_connect doesn't change

When hci_conn_params_set() is called if the new auto_connect value is
the same as the old one we don't need to take any action. Simply return
success from the function in this case.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

net/bluetooth/hci_core.c

@@ -3525,6 +3525,9 @@ int hci_conn_params_set(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type,
 	if (!params)
 		return -EIO;
 
+	if (params->auto_connect == auto_connect)
+		return 0;
+
 	if (params->auto_connect == HCI_AUTO_CONN_REPORT &&
 	    auto_connect != HCI_AUTO_CONN_REPORT)
 		list_del_init(&params->action);