diff options
| author |   Peter Hurley <peter@hurleysoftware.com> | 2014-07-06 11:29:53 -0400 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-07-10 16:31:34 -0700 |
| commit | 99ecb001f52ef10ebf686d4e55b1cf64b1e56aa6 (patch) | |
| tree | 5ae0e765c1e9a7f1da073760c033e16c2b953f26 /drivers | |
| parent | serial: Test for no tx data on tx restart (diff) | |
| download | linux-dev-99ecb001f52ef10ebf686d4e55b1cf64b1e56aa6.tar.xz linux-dev-99ecb001f52ef10ebf686d4e55b1cf64b1e56aa6.zip | |
serial: arc_uart: Use uart_circ_empty() for open-coded comparison
Replace open-coded test for empty tx ring buffer with equivalent
helper function, uart_circ_empty(). No functional change.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/tty/serial/arc_uart.c | 2 |
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++; |