From: Alan Cox <alan@lxorguk.ukuu.org.uk>

Earlier patches have removed the checking for old v new differences from the
USB drivers so we can now pass in a valid blank old termios so that we don't
to fill the drivers with magic hacks for console support

Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---


diff -puN drivers/serial/serial_core.c~usb_serial-stop-passing-null-to-functions-that-expect-data drivers/serial/serial_core.c
--- a/drivers/serial/serial_core.c~usb_serial-stop-passing-null-to-functions-that-expect-data
+++ a/drivers/serial/serial_core.c
@@ -1885,6 +1885,7 @@ uart_set_options(struct uart_port *port,
 		 int baud, int parity, int bits, int flow)
 {
 	struct ktermios termios;
+	static struct ktermios dummy;
 	int i;
 
 	/*
@@ -1930,7 +1931,7 @@ uart_set_options(struct uart_port *port,
 	 */
 	port->mctrl |= TIOCM_DTR;
 
-	port->ops->set_termios(port, &termios, NULL);
+	port->ops->set_termios(port, &termios, &dummy);
 	co->cflag = termios.c_cflag;
 
 	return 0;
_