The do .. while loop checks for interrupt pending at the start of the loop and exits if there is none, it then checks again for this condition at the end of the loop. --- drivers/tty/serial/omap-serial.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c index 7754053..6f9ce5e 100644 --- a/drivers/tty/serial/omap-serial.c +++ b/drivers/tty/serial/omap-serial.c @@ -610,7 +610,7 @@ static irqreturn_t serial_omap_irq(int irq, void *dev_id) default: break; } - } while (!(iir & UART_IIR_NO_INT) && max_count--); + } while (max_count--); spin_unlock(&up->port.lock); -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
