linux-kernel - [PATCH 02/10] TTY: serial, cleanup atmel_set

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Date:	Wed,  9 Nov 2011 21:33:44 +0100
From:	Jiri Slaby <jslaby@...e.cz>
To:	gregkh@...e.de
Cc:	linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org,
	jirislaby@...il.com, Alan Cox <alan@...ux.intel.com>,
	Viktar Palstsiuk <viktar.palstsiuk@...mwad.com>,
	Nicolas Ferre <nicolas.ferre@...el.com>,
	Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>
Subject: [PATCH 02/10] TTY: serial, cleanup atmel_set_ldisc

Current ldisc number is passed as a paramneter -- no need to dig it
out of the tty or ldisc. So switch PPS check to that.

No tty callback can be called with port->line higher than TTY driver
num. So remove the check.

This removes some port.tty users.

Signed-off-by: Jiri Slaby <jslaby@...e.cz>
Cc: Greg Kroah-Hartman <gregkh@...e.de>
Cc: Alan Cox <alan@...ux.intel.com>
Cc: Viktar Palstsiuk <viktar.palstsiuk@...mwad.com>
Cc: Nicolas Ferre <nicolas.ferre@...el.com>
Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>
---
 drivers/tty/serial/atmel_serial.c |    7 +------
 1 files changed, 1 insertions(+), 6 deletions(-)

diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
index 4a0f86f..6b844d4 100644
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c
@@ -1256,12 +1256,7 @@ static void atmel_set_termios(struct uart_port *port, struct ktermios *termios,
 
 static void atmel_set_ldisc(struct uart_port *port, int new)
 {
-	int line = port->line;
-
-	if (line >= port->state->port.tty->driver->num)
-		return;
-
-	if (port->state->port.tty->ldisc->ops->num == N_PPS) {
+	if (new == N_PPS) {
 		port->flags |= UPF_HARDPPS_CD;
 		atmel_enable_ms(port);
 	} else {
-- 
1.7.7


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