diff options
Diffstat (limited to 'drivers/tty/serial/8250/8250_exar.c')
| -rw-r--r-- | drivers/tty/serial/8250/8250_exar.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/tty/serial/8250/8250_exar.c b/drivers/tty/serial/8250/8250_exar.c index b406cba10b0e..077c3ba3539e 100644 --- a/drivers/tty/serial/8250/8250_exar.c +++ b/drivers/tty/serial/8250/8250_exar.c @@ -198,8 +198,12 @@ static int xr17v35x_startup(struct uart_port *port) /* * Make sure all interrups are masked until initialization is * complete and the FIFOs are cleared + * + * Synchronize UART_IER access against the console. */ + spin_lock_irq(&port->lock); serial_port_out(port, UART_IER, 0); + spin_unlock_irq(&port->lock); return serial8250_do_startup(port); } |