1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/tty/serial/arc_uart.c b/drivers/tty/serial/arc_uart.c
index c9f5c9dcc15c..008c223eaf26 100644
--- a/drivers/tty/serial/arc_uart.c
+++ b/drivers/tty/serial/arc_uart.c
@@ -177,7 +177,7 @@ static void arc_serial_tx_chars(struct arc_uart_port *uart)
                 uart->port.icount.tx++;
                 uart->port.x_char = 0;
                 sent = 1;
-        } else if (xmit->tail != xmit->head) {  /* TODO: uart_circ_empty */
+        } else if (!uart_circ_empty(xmit)) {
                 ch = xmit->buf[xmit->tail];
                 xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
                 uart->port.icount.tx++;