From: David Lechner <david@lechnology.com> Date: Fri, 8 Dec 2017 02:22:19 +0000 (-0600) Subject: Bluetooth: hci_ll: Add endianness conversion when setting baudrate X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=c30b93eade2ad1d77695669f25ddeb3833588d3b;p=linux.git Bluetooth: hci_ll: Add endianness conversion when setting baudrate This adds an endianness conversion when setting the baudrate using a vendor-specific command. Otherwise, bad things might happen on a big- endian system. Suggested-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: David Lechner <david@lechnology.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> --- diff --git a/drivers/bluetooth/hci_ll.c b/drivers/bluetooth/hci_ll.c index 974a78879d206..efcfbe9aac217 100644 --- a/drivers/bluetooth/hci_ll.c +++ b/drivers/bluetooth/hci_ll.c @@ -707,10 +707,12 @@ static int ll_setup(struct hci_uart *hu) speed = 0; if (speed) { + __le32 speed_le = cpu_to_le32(speed); struct sk_buff *skb; skb = __hci_cmd_sync(hu->hdev, HCI_VS_UPDATE_UART_HCI_BAUDRATE, - sizeof(speed), &speed, HCI_INIT_TIMEOUT); + sizeof(speed_le), &speed_le, + HCI_INIT_TIMEOUT); if (!IS_ERR(skb)) { kfree_skb(skb); serdev_device_set_baudrate(serdev, speed);