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Bluetooth: add NULL pointer check in HCI

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If we fail to find a hci device pointer in hci_uart, don't try
to deref the NULL one we do have.

Signed-off-by: Jun Nie <[email protected]>
Signed-off-by: Gustavo F. Padovan <[email protected]>
This commit is contained in:
Jun Nie 2010-12-07 14:03:38 +08:00 • committed by Gustavo F. Padovan
commit d9319560b8
1 changed files with 4 additions and 2 deletions
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6
drivers/bluetooth/hci_ldisc.c
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@ -311,8 +311,10 @@ static void hci_uart_tty_close(struct tty_struct *tty)
if (test_and_clear_bit(HCI_UART_PROTO_SET, &hu->flags)) {
hu->proto->close(hu);
hci_unregister_dev(hdev);
hci_free_dev(hdev);
if (hdev) {
hci_unregister_dev(hdev);
hci_free_dev(hdev);
}
}
}
}