From 424cc0391222695225632a3f2ccb0aed3e57b2e5 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Thu, 25 Aug 2011 15:12:07 +0200 Subject: [PATCH] TTY: use tty_wait_until_sent_from_close in tty_port_close_start Let's use the newly added helper to avoid stalls in drivers which are already ported to tty_port helpers. We have to ensure here, that there is no user of tty_port_close_start and tty_port_close which holds port->mutex (or other) lock over them. And sure, there is none. Signed-off-by: Jiri Slaby Acked-by: Arnd Bergmann Signed-off-by: Greg Kroah-Hartman --- drivers/tty/tty_port.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c index 33d37d2..ef9dd62 100644 --- a/drivers/tty/tty_port.c +++ b/drivers/tty/tty_port.c @@ -350,7 +350,7 @@ int tty_port_close_start(struct tty_port *port, tty_driver_flush_buffer(tty); if (test_bit(ASYNCB_INITIALIZED, &port->flags) && port->closing_wait != ASYNC_CLOSING_WAIT_NONE) - tty_wait_until_sent(tty, port->closing_wait); + tty_wait_until_sent_from_close(tty, port->closing_wait); if (port->drain_delay) { unsigned int bps = tty_get_baud_rate(tty); long timeout; -- 2.7.4