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-rw-r--r--drivers/tty/serial/serial_core.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 2ca4df4a4836..d7e8a5ef1879 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -1404,6 +1404,15 @@ static void uart_hangup(struct tty_struct *tty)
mutex_unlock(&port->mutex);
}
+static int uart_port_activate(struct tty_port *port, struct tty_struct *tty)
+{
+ return 0;
+}
+
+static void uart_port_shutdown(struct tty_port *port)
+{
+}
+
static int uart_carrier_raised(struct tty_port *port)
{
struct uart_state *state = container_of(port, struct uart_state, port);
@@ -2162,6 +2171,8 @@ static const struct tty_operations uart_ops = {
};
static const struct tty_port_operations uart_port_ops = {
+ .activate = uart_port_activate,
+ .shutdown = uart_port_shutdown,
.carrier_raised = uart_carrier_raised,
.dtr_rts = uart_dtr_rts,
};
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