USB: empeg: clean up and handle speeds

The empeg is pretty fixed. Tidy up the long foo->bar->baz stuff and
encode the fixed speed properly.
Signed-off-by: NAlan Cox <alan@redhat.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/usb/serial/empeg.c

@@ -449,14 +449,9 @@ static int empeg_ioctl (struct usb_serial_port *port, struct file * file, unsign
 
 static void empeg_set_termios (struct usb_serial_port *port, struct ktermios *old_termios)
 {
-
+	struct ktermios *termios = port->tty->termios;
 	dbg("%s - port %d", __FUNCTION__, port->number);
 
-	if ((!port->tty) || (!port->tty->termios)) {
-		dbg("%s - no tty structures", __FUNCTION__);
-		return;
-	}
-
 	/*
          * The empeg-car player wants these particular tty settings.
          * You could, for example, change the baud rate, however the
@@ -466,7 +461,7 @@ static void empeg_set_termios (struct usb_serial_port *port, struct ktermios *ol
          *
          * The default requirements for this device are:
          */
-	port->tty->termios->c_iflag
+	termios->c_iflag
 		&= ~(IGNBRK	/* disable ignore break */
 		| BRKINT	/* disable break causes interrupt */
 		| PARMRK	/* disable mark parity errors */
@@ -476,24 +471,23 @@ static void empeg_set_termios (struct usb_serial_port *port, struct ktermios *ol
 		| ICRNL		/* disable translate CR to NL */
 		| IXON);	/* disable enable XON/XOFF flow control */
 
-	port->tty->termios->c_oflag
+	termios->c_oflag
 		&= ~OPOST;	/* disable postprocess output characters */
 
-	port->tty->termios->c_lflag
+	termios->c_lflag
 		&= ~(ECHO	/* disable echo input characters */
 		| ECHONL	/* disable echo new line */
 		| ICANON	/* disable erase, kill, werase, and rprnt special characters */
 		| ISIG		/* disable interrupt, quit, and suspend special characters */
 		| IEXTEN);	/* disable non-POSIX special characters */
 
-	port->tty->termios->c_cflag
+	termios->c_cflag
 		&= ~(CSIZE	/* no size */
 		| PARENB	/* disable parity bit */
 		| CBAUD);	/* clear current baud rate */
 
-	port->tty->termios->c_cflag
-		|= (CS8		/* character size 8 bits */
-		| B115200);	/* baud rate 115200 */
+	termios->c_cflag
+		|= CS8;		/* character size 8 bits */
 
 	/*
 	 * Force low_latency on; otherwise the pushes are scheduled;
@@ -501,8 +495,7 @@ static void empeg_set_termios (struct usb_serial_port *port, struct ktermios *ol
 	 * on the floor.  We don't want to drop bytes on the floor. :)
 	 */
 	port->tty->low_latency = 1;
-
-	return;
+	tty_encode_baud_rate(port->tty, 115200, 115200);
 }