Bluetooth: hci_serdev: Move serdev_device_close/open into common hci_serdev code
Make hci_uart_register_device() and hci_uart_unregister_device() call
serdev_device_close()/open() themselves instead of relying on the various
hci_uart drivers to do this for them.
Besides reducing code complexity, this also ensures correct error checking
of serdev_device_open(), which was missing in a few drivers.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/drivers/bluetooth/hci_bcm.c b/drivers/bluetooth/hci_bcm.c
index f06f0f1..ddbd8c6 100644
--- a/drivers/bluetooth/hci_bcm.c
+++ b/drivers/bluetooth/hci_bcm.c
@@ -380,10 +380,6 @@ static int bcm_open(struct hci_uart *hu)
mutex_lock(&bcm_device_lock);
if (hu->serdev) {
- err = serdev_device_open(hu->serdev);
- if (err)
- goto err_free;
-
bcm->dev = serdev_device_get_drvdata(hu->serdev);
goto out;
}
@@ -420,13 +416,10 @@ static int bcm_open(struct hci_uart *hu)
return 0;
err_unset_hu:
- if (hu->serdev)
- serdev_device_close(hu->serdev);
#ifdef CONFIG_PM
- else
+ if (!hu->serdev)
bcm->dev->hu = NULL;
#endif
-err_free:
mutex_unlock(&bcm_device_lock);
hu->priv = NULL;
kfree(bcm);
@@ -445,7 +438,6 @@ static int bcm_close(struct hci_uart *hu)
mutex_lock(&bcm_device_lock);
if (hu->serdev) {
- serdev_device_close(hu->serdev);
bdev = serdev_device_get_drvdata(hu->serdev);
} else if (bcm_device_exists(bcm->dev)) {
bdev = bcm->dev;
diff --git a/drivers/bluetooth/hci_ll.c b/drivers/bluetooth/hci_ll.c
index 27e414b..3e767f2 100644
--- a/drivers/bluetooth/hci_ll.c
+++ b/drivers/bluetooth/hci_ll.c
@@ -141,7 +141,6 @@ static int ll_open(struct hci_uart *hu)
if (hu->serdev) {
struct ll_device *lldev = serdev_device_get_drvdata(hu->serdev);
- serdev_device_open(hu->serdev);
if (!IS_ERR(lldev->ext_clk))
clk_prepare_enable(lldev->ext_clk);
}
@@ -179,8 +178,6 @@ static int ll_close(struct hci_uart *hu)
gpiod_set_value_cansleep(lldev->enable_gpio, 0);
clk_disable_unprepare(lldev->ext_clk);
-
- serdev_device_close(hu->serdev);
}
hu->priv = NULL;
diff --git a/drivers/bluetooth/hci_nokia.c b/drivers/bluetooth/hci_nokia.c
index 3539fd0..14d159e 100644
--- a/drivers/bluetooth/hci_nokia.c
+++ b/drivers/bluetooth/hci_nokia.c
@@ -477,8 +477,6 @@ static int nokia_open(struct hci_uart *hu)
dev_dbg(dev, "protocol open");
- serdev_device_open(hu->serdev);
-
pm_runtime_enable(dev);
return 0;
@@ -513,7 +511,6 @@ static int nokia_close(struct hci_uart *hu)
gpiod_set_value(btdev->wakeup_bt, 0);
pm_runtime_disable(&btdev->serdev->dev);
- serdev_device_close(btdev->serdev);
return 0;
}
diff --git a/drivers/bluetooth/hci_serdev.c b/drivers/bluetooth/hci_serdev.c
index 6a713f1..7a3d6d6 100644
--- a/drivers/bluetooth/hci_serdev.c
+++ b/drivers/bluetooth/hci_serdev.c
@@ -284,10 +284,14 @@ int hci_uart_register_device(struct hci_uart *hu,
serdev_device_set_client_ops(hu->serdev, &hci_serdev_client_ops);
- err = p->open(hu);
+ err = serdev_device_open(hu->serdev);
if (err)
return err;
+ err = p->open(hu);
+ if (err)
+ goto err_open;
+
hu->proto = p;
set_bit(HCI_UART_PROTO_READY, &hu->flags);
@@ -353,6 +357,8 @@ int hci_uart_register_device(struct hci_uart *hu,
err_alloc:
clear_bit(HCI_UART_PROTO_READY, &hu->flags);
p->close(hu);
+err_open:
+ serdev_device_close(hu->serdev);
return err;
}
EXPORT_SYMBOL_GPL(hci_uart_register_device);
@@ -367,5 +373,6 @@ void hci_uart_unregister_device(struct hci_uart *hu)
cancel_work_sync(&hu->write_work);
hu->proto->close(hu);
+ serdev_device_close(hu->serdev);
}
EXPORT_SYMBOL_GPL(hci_uart_unregister_device);
