serial: introduce tty krefs
Initially just use the helper and thus krefs when we set and clear the
port values.
Signed-off-by: Alan Cox <alan@linux.intel.com>
diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c
index 69c4e20..3fd0134 100644
--- a/drivers/serial/serial_core.c
+++ b/drivers/serial/serial_core.c
@@ -1333,7 +1333,7 @@
tty_ldisc_flush(tty);
tty->closing = 0;
- port->tty = NULL;
+ tty_port_tty_set(port, NULL);
if (port->blocked_open) {
if (port->close_delay)
@@ -1431,7 +1431,7 @@
uart_shutdown(state);
port->count = 0;
clear_bit(ASYNCB_NORMAL_ACTIVE, &port->flags);
- port->tty = NULL;
+ tty_port_tty_set(port, NULL);
wake_up_interruptible(&port->open_wait);
wake_up_interruptible(&port->delta_msr_wait);
}
@@ -1639,7 +1639,7 @@
state->uart_port->state = state;
tty->low_latency = (state->uart_port->flags & UPF_LOW_LATENCY) ? 1 : 0;
tty->alt_speed = 0;
- port->tty = tty;
+ tty_port_tty_set(port, tty);
/*
* If the port is in the middle of closing, bail out now.