This patch adds NULL check for hci uart ldisc driver because some of hci uart drivers allow hci_uart_tty_receive function could be called though hci uart driver is not registered properly. Signed-off-by: Chan-yeol Park <chanyeol.park@xxxxxxxxxxx> --- drivers/bluetooth/hci_ldisc.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c index ed0fade..d710d8b 100644 --- a/drivers/bluetooth/hci_ldisc.c +++ b/drivers/bluetooth/hci_ldisc.c @@ -388,7 +388,10 @@ static void hci_uart_tty_receive(struct tty_struct *tty, const u8 *data, char *f spin_lock(&hu->rx_lock); hu->proto->recv(hu, (void *) data, count); - hu->hdev->stat.byte_rx += count; + + if (hu->hdev) + hu->hdev->stat.byte_rx += count; + spin_unlock(&hu->rx_lock); tty_unthrottle(tty); -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
