atmel_serial might lose modem status change

[net-next-2.6.git] / drivers / serial / atmel_serial.c

diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c
index 89362d733d6230331c6bead3c8bbce3ef9d28563..8f58f7ff0dd7db29af5c749dbeda386b8c6c10b9 100644 (file)
--- a/drivers/serial/atmel_serial.c
+++ b/drivers/serial/atmel_serial.c
@@ -877,6 +877,10 @@ static int atmel_startup(struct uart_port *port)
                }
        }
 
+       /* Save current CSR for comparison in atmel_tasklet_func() */
+       atmel_port->irq_status_prev = UART_GET_CSR(port);
+       atmel_port->irq_status = atmel_port->irq_status_prev;
+
        /*
         * Finally, enable the serial port
         */