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-rw-r--r--drivers/serial/serial_core.c10
-rw-r--r--include/linux/serial_core.h1
2 files changed, 11 insertions, 0 deletions
diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c
index 53b03c629aff..951a75ea6e3e 100644
--- a/drivers/serial/serial_core.c
+++ b/drivers/serial/serial_core.c
@@ -1165,6 +1165,15 @@ out:
return ret;
}
+static void uart_set_ldisc(struct tty_struct *tty, int ldisc)
+{
+ struct uart_state *state = tty->driver_data;
+ struct uart_port *port = state->port;
+
+ if (port->ops->set_ldisc)
+ port->ops->set_ldisc(port);
+}
+
static void uart_set_termios(struct tty_struct *tty,
struct ktermios *old_termios)
{
@@ -2288,6 +2297,7 @@ static const struct tty_operations uart_ops = {
.unthrottle = uart_unthrottle,
.send_xchar = uart_send_xchar,
.set_termios = uart_set_termios,
+ .set_ldisc = uart_set_ldisc,
.stop = uart_stop,
.start = uart_start,
.hangup = uart_hangup,
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index d32123ae08ad..d8f31de632c5 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -192,6 +192,7 @@ struct uart_ops {
void (*shutdown)(struct uart_port *);
void (*set_termios)(struct uart_port *, struct ktermios *new,
struct ktermios *old);
+ void (*set_ldisc)(struct uart_port *);
void (*pm)(struct uart_port *, unsigned int state,
unsigned int oldstate);
int (*set_wake)(struct uart_port *, unsigned int state);