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authorAlan Cox <alan@redhat.com>2008-07-22 11:18:03 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-22 13:03:28 -0700
commit9e98966c7bb94355689478bc84cc3e0c190f977e (patch)
tree928aebbfee524a48aa94a3d3def5249c8846a79a /drivers/serial
parentabbe629ae4011d2020047f41bea9f9e4b0ec4361 (diff)
downloadop-kernel-dev-9e98966c7bb94355689478bc84cc3e0c190f977e.zip
op-kernel-dev-9e98966c7bb94355689478bc84cc3e0c190f977e.tar.gz
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 <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/serial')
-rw-r--r--drivers/serial/serial_core.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c
index 0bce1fe..f977c98 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)
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