Merge tag 'v3.17-rockchip-rk3288' of git://git.kernel.org/pub/scm/linux/kernel/git...

[firefly-linux-kernel-4.4.55.git] / drivers / tty / serial / sunzilog.c

diff --git a/drivers/tty/serial/sunzilog.c b/drivers/tty/serial/sunzilog.c
index a2c40ed287d21b7a7ff545626bba5b0711211149..02df3940b95e4e14d5db2c4b35eb8a0ebe70be71 100644 (file)
--- a/drivers/tty/serial/sunzilog.c
+++ b/drivers/tty/serial/sunzilog.c
@@ -703,6 +703,8 @@ static void sunzilog_start_tx(struct uart_port *port)
        } else {
                struct circ_buf *xmit = &port->state->xmit;
 
+               if (uart_circ_empty(xmit))
+                       return;
                writeb(xmit->buf[xmit->tail], &channel->data);
                ZSDELAY();
                ZS_WSYNC(channel);
@@ -915,7 +917,7 @@ sunzilog_convert_to_zs(struct uart_sunzilog_port *up, unsigned int cflag,
        up->port.read_status_mask = Rx_OVR;
        if (iflag & INPCK)
                up->port.read_status_mask |= CRC_ERR | PAR_ERR;
-       if (iflag & (BRKINT | PARMRK))
+       if (iflag & (IGNBRK | BRKINT | PARMRK))
                up->port.read_status_mask |= BRK_ABRT;
 
        up->port.ignore_status_mask = 0;