From 9e98966c7bb94355689478bc84cc3e0c190f977e Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Tue, 22 Jul 2008 11:18:03 +0100 Subject: tty: rework break handling Some hardware needs to do break handling itself and may have partial support only. Make break_ctl return an error code. Add a tty driver flag so you can indicate driver hardware side break support. Signed-off-by: Alan Cox Signed-off-by: Linus Torvalds --- drivers/serial/serial_core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/serial') diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c index 0bce1fe2c62..f977c98cfa9 100644 --- a/drivers/serial/serial_core.c +++ b/drivers/serial/serial_core.c @@ -934,7 +934,7 @@ uart_tiocmset(struct tty_struct *tty, struct file *file, return ret; } -static void uart_break_ctl(struct tty_struct *tty, int break_state) +static int uart_break_ctl(struct tty_struct *tty, int break_state) { struct uart_state *state = tty->driver_data; struct uart_port *port = state->port; @@ -945,6 +945,7 @@ static void uart_break_ctl(struct tty_struct *tty, int break_state) port->ops->break_ctl(port, break_state); mutex_unlock(&state->mutex); + return 0; } static int uart_do_autoconfig(struct uart_state *state) -- cgit v1.2.3