Commit 63b8ed26 authored by Johan Hovold's avatar Johan Hovold
Browse files

USB: serial: xr: avoid requesting zero DTE rate 



When the requested line speed is B0 (hangup) there is no need to use the
current speed in the line-coding request. This specifically avoids
requesting a zero DTE rate when the current speed is B0, which could
potentially confuse buggy firmware.

Reviewed-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarJohan Hovold <johan@kernel.org>
parent d03a6d4e

drivers/usb/serial/xr_serial.c

+0 −2
Original line number Diff line number Diff line
@@ -749,8 +749,6 @@ static void xr_cdc_set_line_coding(struct tty_struct *tty, 


	if (tty->termios.c_ospeed)

		lc->dwDTERate = cpu_to_le32(tty->termios.c_ospeed);

	else if (old_termios)

		lc->dwDTERate = cpu_to_le32(old_termios->c_ospeed);

	else

		lc->dwDTERate = cpu_to_le32(9600);