diff --git a/drivers/bluetooth/hci_serdev.c b/drivers/bluetooth/hci_serdev.c
index f5ccb2c7ef92..3b8ac0ece3fb 100644
--- a/drivers/bluetooth/hci_serdev.c
+++ b/drivers/bluetooth/hci_serdev.c
@@ -104,13 +104,9 @@ static void hci_uart_write_work(struct work_struct *work)
 /* Initialize device */
 static int hci_uart_open(struct hci_dev *hdev)
 {
-	struct hci_uart *hu  = hci_get_drvdata(hdev);
-
 	BT_DBG("%s %p", hdev->name, hdev);
 
-	serdev_device_set_client_ops(hu->serdev, &hci_serdev_client_ops);
-
-	return serdev_device_open(hu->serdev);
+	return 0;
 }
 
 /* Reset device */
@@ -136,15 +132,11 @@ static int hci_uart_flush(struct hci_dev *hdev)
 /* Close device */
 static int hci_uart_close(struct hci_dev *hdev)
 {
-	struct hci_uart *hu  = hci_get_drvdata(hdev);
-
 	BT_DBG("hdev %p", hdev);
 
 	hci_uart_flush(hdev);
 	hdev->flush = NULL;
 
-	serdev_device_close(hu->serdev);
-
 	return 0;
 }
 
@@ -289,6 +281,8 @@ int hci_uart_register_device(struct hci_uart *hu,
 
 	BT_DBG("");
 
+	serdev_device_set_client_ops(hu->serdev, &hci_serdev_client_ops);
+
 	err = p->open(hu);
 	if (err)
 		return err;