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Bluetooth: hci_serdev: Only unregister device if it was registered

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[ Upstream commit 202798db9570104728dce8bb57dfeed47ce764bc ]

We should not call hci_unregister_dev if the device was not
successfully registered.

Fixes: c34dc3bfa7642fd ("Bluetooth: hci_serdev: Introduce hci_uart_unregister_device()")
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Nicolas Boichat 2020-07-21 10:37:16 +08:00 committed by Greg Kroah-Hartman
parent ba5c28f784
commit 495b9d0dd0
1 changed files with 2 additions and 1 deletions
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3
drivers/bluetooth/hci_serdev.c
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@ -357,7 +357,8 @@ void hci_uart_unregister_device(struct hci_uart *hu)
struct hci_dev *hdev = hu->hdev;
clear_bit(HCI_UART_PROTO_READY, &hu->flags);
hci_unregister_dev(hdev);
if (test_bit(HCI_UART_REGISTERED, &hu->flags))
hci_unregister_dev(hdev);
hci_free_dev(hdev);
cancel_work_sync(&hu->write_work);