diff options
| author | Peter Hurley <peter@hurleysoftware.com> | 2016-04-10 06:49:42 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-04-30 19:26:55 +0300 |
| commit | d601744dc145a27945e97d643d2f5d298ab40627 (patch) | |
| tree | ae8feaae4f7af5236dd94cca6a036088d82496c2 /drivers/tty | |
| parent | a86f50ed35a8854f964393e60526c16744e2ed2c (diff) | |
| download | linux-d601744dc145a27945e97d643d2f5d298ab40627.tar.xz | |
serial: 8250: Reduce expr in 8250 irq handler
If !up->dma == F, then up->dma == T and can be elided from the
(up->dma && up->dma->tx_err) sub-expression.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/8250/8250_port.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c index 40d2d303dc7f..b2bbb9dcfa0b 100644 --- a/drivers/tty/serial/8250/8250_port.c +++ b/drivers/tty/serial/8250/8250_port.c @@ -1811,8 +1811,7 @@ int serial8250_handle_irq(struct uart_port *port, unsigned int iir) status = serial8250_rx_chars(up, status); } serial8250_modem_status(up); - if ((!up->dma || (up->dma && up->dma->tx_err)) && - (status & UART_LSR_THRE)) + if ((!up->dma || up->dma->tx_err) && (status & UART_LSR_THRE)) serial8250_tx_chars(up); spin_unlock_irqrestore(&port->lock, flags); |