From b26a274f999b4d5eeef50fcc5bf4c07b34964587 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Wed, 18 Jan 2012 01:46:00 +0100 Subject: [PATCH] USB: ftdi_sio: fix initial baud rate commit 108e02b12921078a59dcacd048079ece48a4a983 upstream. Fix regression introduced by commit b1ffb4c851f1 ("USB: Fix Corruption issue in USB ftdi driver ftdi_sio.c") which caused the termios settings to no longer be initialised at open. Consequently it was no longer possible to set the port to the default speed of 9600 baud without first changing to another baud rate and back again. Reported-by: Roland Ramthun Signed-off-by: Johan Hovold Tested-by: Roland Ramthun Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/ftdi_sio.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index 6a034b31e967..6a40b41c3a2c 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -1823,6 +1823,7 @@ static int ftdi_sio_port_remove(struct usb_serial_port *port) static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port) { + struct ktermios dummy; struct usb_device *dev = port->serial->dev; struct ftdi_private *priv = usb_get_serial_port_data(port); int result; @@ -1841,8 +1842,10 @@ static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port) This is same behaviour as serial.c/rs_open() - Kuba */ /* ftdi_set_termios will send usb control messages */ - if (tty) - ftdi_set_termios(tty, port, tty->termios); + if (tty) { + memset(&dummy, 0, sizeof(dummy)); + ftdi_set_termios(tty, port, &dummy); + } /* Start reading from the device */ result = usb_serial_generic_open(tty, port); -- 2.39.5