tty: USB serial termios bits

Various drivers have hacks to mangle termios structures. This stems from
the fact there is no nice setup hook for configuring the termios settings
when the port is created

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/serial/kobil_sct.c

@@ -84,7 +84,7 @@ static void kobil_read_int_callback(struct urb *urb);
 static void kobil_write_callback(struct urb *purb);
 static void kobil_set_termios(struct tty_struct *tty,
 			struct usb_serial_port *port, struct ktermios *old);
-
+static void kobil_init_termios(struct tty_struct *tty);
 
 static struct usb_device_id id_table [] = {
 	{ USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_B_PRODUCT_ID) },
@@ -119,6 +119,7 @@ static struct usb_serial_driver kobil_device = {
 	.release =		kobil_release,
 	.ioctl =		kobil_ioctl,
 	.set_termios =		kobil_set_termios,
+	.init_termios =		kobil_init_termios,
 	.tiocmget =		kobil_tiocmget,
 	.tiocmset =		kobil_tiocmset,
 	.open =			kobil_open,
@@ -209,6 +210,15 @@ static void kobil_release(struct usb_serial *serial)
 		kfree(usb_get_serial_port_data(serial->port[i]));
 }
 
+static void kobil_init_termios(struct tty_struct *tty)
+{
+	/* Default to echo off and other sane device settings */
+	tty->termios->c_lflag = 0;
+	tty->termios->c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN | XCASE);
+	tty->termios->c_iflag = IGNBRK | IGNPAR | IXOFF;
+	/* do NOT translate CR to CR-NL (0x0A -> 0x0A 0x0D) */
+	tty->termios->c_oflag &= ~ONLCR;
+}
 
 static int kobil_open(struct tty_struct *tty, struct usb_serial_port *port)
 {
@@ -224,16 +234,6 @@ static int kobil_open(struct tty_struct *tty, struct usb_serial_port *port)
 	/* someone sets the dev to 0 if the close method has been called */
 	port->interrupt_in_urb->dev = port->serial->dev;
 
-	if (tty) {
-
-		/* Default to echo off and other sane device settings */
-		tty->termios->c_lflag = 0;
-		tty->termios->c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN |
-								 XCASE);
-		tty->termios->c_iflag = IGNBRK | IGNPAR | IXOFF;
-		/* do NOT translate CR to CR-NL (0x0A -> 0x0A 0x0D) */
-		tty->termios->c_oflag &= ~ONLCR;
-	}
 	/* allocate memory for transfer buffer */
 	transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
 	if (!transfer_buffer)