tty: Replace ASYNC_SUSPENDED bit and update atomically

[cascardo/linux.git] / drivers / tty / serial / serial_core.c

diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 2471380..9336067 100644 (file)
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -249,7 +249,7 @@ static void uart_shutdown(struct tty_struct *tty, struct uart_state *state)
         * a DCD drop (hangup) at just the right time.  Clear suspended bit so
         * we don't try to resume a port that has been shutdown.
         */
-       clear_bit(ASYNCB_SUSPENDED, &port->flags);
+       tty_port_set_suspended(port, 0);
 
        /*
         * Free the transmit buffer page.
@@ -2007,7 +2007,7 @@ int uart_suspend_port(struct uart_driver *drv, struct uart_port *uport)
                const struct uart_ops *ops = uport->ops;
                int tries;
 
-               set_bit(ASYNCB_SUSPENDED, &port->flags);
+               tty_port_set_suspended(port, 1);
                clear_bit(ASYNCB_INITIALIZED, &port->flags);
 
                spin_lock_irq(&uport->lock);
@@ -2088,7 +2088,7 @@ int uart_resume_port(struct uart_driver *drv, struct uart_port *uport)
                        console_start(uport->cons);
        }
 
-       if (port->flags & ASYNC_SUSPENDED) {
+       if (tty_port_suspended(port)) {
                const struct uart_ops *ops = uport->ops;
                int ret;
 
@@ -2118,7 +2118,7 @@ int uart_resume_port(struct uart_driver *drv, struct uart_port *uport)
                        }
                }
 
-               clear_bit(ASYNCB_SUSPENDED, &port->flags);
+               tty_port_set_suspended(port, 0);
        }
 
        mutex_unlock(&port->mutex);