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>
diff --git a/arch/ia64/hp/sim/simserial.c b/arch/ia64/hp/sim/simserial.c
index 53db99a..2cd6d23 100644
--- a/arch/ia64/hp/sim/simserial.c
+++ b/arch/ia64/hp/sim/simserial.c
@@ -430,45 +430,12 @@
{
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);
+ if (tty_port_close_start(port, tty, filp) == 0)
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);
- 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 @@
*/
shutdown(tty, info);
rs_flush_buffer(tty);
- tty_ldisc_flush(tty);
port->tty = NULL;
tty_port_close_end(port, tty);