diff options
| -rw-r--r-- | drivers/tty/serial/serial_core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index 849bd0d06b2c..0464360781fe 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -1253,7 +1253,6 @@ static void uart_close(struct tty_struct *tty, struct file *filp) pr_debug("uart_close(%d) called\n", uport->line); - mutex_lock(&port->mutex); spin_lock_irqsave(&port->lock, flags); if (tty_hung_up_p(filp)) { @@ -1312,6 +1311,7 @@ static void uart_close(struct tty_struct *tty, struct file *filp) uart_wait_until_sent(tty, uport->timeout); } + mutex_lock(&port->mutex); uart_shutdown(tty, state); uart_flush_buffer(tty); |