1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/tty/serial/bcm63xx_uart.c b/drivers/tty/serial/bcm63xx_uart.c
index 583c9a0c7ecc..8c48c3784831 100644
--- a/drivers/tty/serial/bcm63xx_uart.c
+++ b/drivers/tty/serial/bcm63xx_uart.c
@@ -507,9 +507,14 @@ static void bcm_uart_set_termios(struct uart_port *port,
 {
         unsigned int ctl, baud, quot, ier;
         unsigned long flags;
+        int tries;
 
         spin_lock_irqsave(&port->lock, flags);
 
+        /* Drain the hot tub fully before we power it off for the winter. */
+        for (tries = 3; !bcm_uart_tx_empty(port) && tries; tries--)
+                mdelay(10);
+
         /* disable uart while changing speed */
         bcm_uart_disable(port);
         bcm_uart_flush(port);