diff options
| -rw-r--r-- | drivers/tty/serial/8250/8250_port.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c index bd0c47c58285..c4dac1be3ec1 100644 --- a/drivers/tty/serial/8250/8250_port.c +++ b/drivers/tty/serial/8250/8250_port.c @@ -1238,6 +1238,9 @@ static void autoconfig_irq(struct uart_8250_port *up) inb_p(ICP); } + if (uart_console(port)) + console_lock(); + /* forget possible initially masked and pending IRQ */ probe_irq_off(probe_irq_on()); save_mcr = serial_in(up, UART_MCR); @@ -1269,6 +1272,9 @@ static void autoconfig_irq(struct uart_8250_port *up) if (port->flags & UPF_FOURPORT) outb_p(save_ICP, ICP); + if (uart_console(port)) + console_unlock(); + port->irq = (irq > 0) ? irq : 0; } |