From c30b93eade2ad1d77695669f25ddeb3833588d3b Mon Sep 17 00:00:00 2001 From: David Lechner Date: Thu, 7 Dec 2017 20:22:19 -0600 Subject: 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 Signed-off-by: David Lechner Signed-off-by: Marcel Holtmann --- drivers/bluetooth/hci_ll.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/bluetooth/hci_ll.c') diff --git a/drivers/bluetooth/hci_ll.c b/drivers/bluetooth/hci_ll.c index 974a78879d20..efcfbe9aac21 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); -- cgit v1.2.1