From 78e74d778a9b3ed80bb73b65ab16f842f48aa287 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Mon, 5 Mar 2012 14:52:35 +0100 Subject: [PATCH] TTY: simserial, use tty_port_close_start I.e. remove more copied bloat. The only change is that we wait_until_sent now. Which is what we really should do. Signed-off-by: Jiri Slaby Cc: Tony Luck Cc: Fenghua Yu Signed-off-by: Greg Kroah-Hartman --- arch/ia64/hp/sim/simserial.c | 36 +----------------------------------- 1 file changed, 1 insertion(+), 35 deletions(-) diff --git a/arch/ia64/hp/sim/simserial.c b/arch/ia64/hp/sim/simserial.c index 53db99af43a2..2cd6d23dfdee 100644 --- a/arch/ia64/hp/sim/simserial.c +++ b/arch/ia64/hp/sim/simserial.c @@ -430,45 +430,12 @@ static void rs_close(struct tty_struct *tty, struct file * filp) { struct serial_state *info = tty->driver_data; struct tty_port *port = &info->port; - unsigned long flags; if (!info) return; - local_irq_save(flags); - if (tty_hung_up_p(filp)) { -#ifdef SIMSERIAL_DEBUG - printk("rs_close: hung_up\n"); -#endif - local_irq_restore(flags); - return; - } -#ifdef SIMSERIAL_DEBUG - printk("rs_close ttys%d, count = %d\n", info->line, port->count); -#endif - if ((tty->count == 1) && (port->count != 1)) { - /* - * Uh, oh. tty->count is 1, which means that the tty - * structure will be freed. port->count should always - * be one in these conditions. If it's greater than - * one, we've got real problems, since it means the - * serial port won't be shutdown. - */ - printk(KERN_ERR "rs_close: bad serial port count; tty->count is 1, " - "port->count is %d\n", port->count); - port->count = 1; - } - if (--port->count < 0) { - printk(KERN_ERR "rs_close: bad serial port count for ttys%d: %d\n", - tty->index, port->count); - port->count = 0; - } - if (port->count) { - local_irq_restore(flags); + if (tty_port_close_start(port, tty, filp) == 0) return; - } - port->flags |= ASYNC_CLOSING; - local_irq_restore(flags); /* * Now we wait for the transmit buffer to clear; and we notify @@ -476,7 +443,6 @@ static void rs_close(struct tty_struct *tty, struct file * filp) */ shutdown(tty, info); rs_flush_buffer(tty); - tty_ldisc_flush(tty); port->tty = NULL; tty_port_close_end(port, tty); -- 2.20.1