--- a/net/bluetooth/hci_core.c 2022-05-14 15:50:24.949518600 +0800 +++ b/net/bluetooth/hci_core.c 2022-05-14 15:56:36.582294000 +0800 @@ -548,6 +548,7 @@ int hci_dev_do_close(struct hci_dev *hde BT_DBG("%s %p", hdev->name, hdev); + cancel_work_sync(&hdev->power_on); hci_req_sync_lock(hdev); err = hci_dev_close_sync(hdev); @@ -2675,6 +2676,7 @@ void hci_unregister_dev(struct hci_dev * list_del(&hdev->list); write_unlock(&hci_dev_list_lock); + cancel_work_sync(&hdev->power_on); hci_cmd_sync_clear(hdev); if (!test_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks)) --- a/net/bluetooth/hci_sync.c 2022-05-14 15:50:22.392948600 +0800 +++ b/net/bluetooth/hci_sync.c 2022-05-14 15:54:53.628039700 +0800 @@ -4089,7 +4089,6 @@ int hci_dev_close_sync(struct hci_dev *h bt_dev_dbg(hdev, ""); - cancel_work_sync(&hdev->power_on); cancel_delayed_work(&hdev->power_off); cancel_delayed_work(&hdev->ncmd_timer);