| From | Peter Hurley <> | Subject | [PATCH v3 02/23] n_tty: Factor packet mode status change for reuse | Date | Tue, 5 Feb 2013 15:20:17 -0500 |
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Factor the packet mode status change from n_tty_flush_buffer for use by follow-on patch.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com> --- drivers/tty/n_tty.c | 24 ++++++++++++++---------- 1 file changed, 14 insertions(+), 10 deletions(-)
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c index bf6958b..7194a33 100644 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@ -237,6 +237,18 @@ static void reset_buffer_flags(struct tty_struct *tty) n_tty_set_room(tty); } +static void packet_mode_flush(struct tty_struct *tty) +{ + unsigned long flags; + + spin_lock_irqsave(&tty->ctrl_lock, flags); + if (tty->link->packet) { + tty->ctrl_status |= TIOCPKT_FLUSHREAD; + wake_up_interruptible(&tty->link->read_wait); + } + spin_unlock_irqrestore(&tty->ctrl_lock, flags); +} + /** * n_tty_flush_buffer - clean input queue * @tty: terminal device @@ -251,19 +263,11 @@ static void reset_buffer_flags(struct tty_struct *tty) static void n_tty_flush_buffer(struct tty_struct *tty) { - unsigned long flags; /* clear everything and unthrottle the driver */ reset_buffer_flags(tty); - if (!tty->link) - return; - - spin_lock_irqsave(&tty->ctrl_lock, flags); - if (tty->link->packet) { - tty->ctrl_status |= TIOCPKT_FLUSHREAD; - wake_up_interruptible(&tty->link->read_wait); - } - spin_unlock_irqrestore(&tty->ctrl_lock, flags); + if (tty->link) + packet_mode_flush(tty); } /** -- 1.8.1.2
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