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Bluetooth: hci_serdev: clear HCI_UART_PROTO_READY to avoid closing proto races

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Clearing HCI_UART_PROTO_READY will avoid usage of proto function pointers
before running the proto close function pointer. There is chance of kernel
crash, due to usage of non proto close function pointers after proto close.

Signed-off-by: Balakrishna Godavarthi <bgodavar@codeaurora.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Balakrishna Godavarthi 2018-08-22 17:34:11 +05:30 committed by Marcel Holtmann
parent c2d7827338
commit 7cf7846d27
1 changed files with 1 additions and 0 deletions
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drivers/bluetooth/hci_serdev.c
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@ -368,6 +368,7 @@ 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);
hci_free_dev(hdev);