From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Date: Thu, 18 Oct 2007 08:24:22 +0000 (-0700)
Subject: usb-serial: handle NULL termios methods as "no hardware changing support"
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=337850917a690ca83605b30b29c464bb3397abdf;p=linux-beck.git

usb-serial: handle NULL termios methods as "no hardware changing support"

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 4b1bd7def4a5..426afaa0d9b8 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -429,6 +429,8 @@ static void serial_set_termios (struct tty_struct *tty, struct ktermios * old)
 	/* pass on to the driver specific version of this function if it is available */
 	if (port->serial->type->set_termios)
 		port->serial->type->set_termios(port, old);
+	else
+		tty_termios_copy_hw(tty->termios, old);
 }
 
 static void serial_break (struct tty_struct *tty, int break_state)