[PATCH] Bluetooth: hci_ll: Add endianness conversion when setting baudrate
From: David Lechner <david@lechnology.com>
Date: 2017-12-08 02:23:18
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> --- drivers/bluetooth/hci_ll.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/bluetooth/hci_ll.c b/drivers/bluetooth/hci_ll.c
index 944cdd2..486b4ea 100644
--- a/drivers/bluetooth/hci_ll.c
+++ b/drivers/bluetooth/hci_ll.c@@ -739,10 +739,12 @@ 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);
--
2.7.4