+++ /dev/null
-diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
-index d75f8c7..49e0930 100644
---- a/drivers/serial/8250.c
-+++ b/drivers/serial/8250.c
-@@ -1696,6 +1696,7 @@ static int serial_link_irq_chain(struct uart_8250_port *up)
- i->head = &up->list;
- spin_unlock_irq(&i->lock);
- irq_flags |= up->port.irqflags;
-+ printk("request_irq %d %d %p\n", irq_flags, up->port.irq, i);
- ret = request_irq(up->port.irq, serial8250_interrupt,
- irq_flags, "serial", i);
- if (ret < 0)