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author | Jiri Slaby <jslaby@suse.cz> | 2012-03-05 14:52:35 +0100 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-03-08 12:48:27 -0800 |
commit | 78e74d778a9b3ed80bb73b65ab16f842f48aa287 (patch) | |
tree | 1909da05d98ba3358f9406573af81d33e0b0439b /arch/ia64 | |
parent | 37343030458c0eea3f1093b09fc604d4f300eac7 (diff) | |
download | linux-stable-78e74d778a9b3ed80bb73b65ab16f842f48aa287.tar.gz linux-stable-78e74d778a9b3ed80bb73b65ab16f842f48aa287.tar.bz2 linux-stable-78e74d778a9b3ed80bb73b65ab16f842f48aa287.zip |
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 <jslaby@suse.cz>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/ia64')
-rw-r--r-- | arch/ia64/hp/sim/simserial.c | 36 |
1 files changed, 1 insertions, 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); |