serial: pch_uart: remove unnecessary tty_port_tty_get
Remove unused tty-reference from dma-rx path which was left after the
recent tty-port conversions.
Also remove a redundant port initialisation while at it.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index 2c5a3e4..44077c0 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -667,31 +667,21 @@
static int dma_push_rx(struct eg20t_port *priv, int size)
{
- struct tty_struct *tty;
int room;
struct uart_port *port = &priv->port;
struct tty_port *tport = &port->state->port;
- port = &priv->port;
- tty = tty_port_tty_get(tport);
- if (!tty) {
- dev_dbg(priv->port.dev, "%s:tty is busy now", __func__);
- return 0;
- }
-
room = tty_buffer_request_room(tport, size);
if (room < size)
dev_warn(port->dev, "Rx overrun: dropping %u bytes\n",
size - room);
if (!room)
- goto out;
+ return 0;
tty_insert_flip_string(tport, sg_virt(&priv->sg_rx), size);
port->icount.rx += room;
-out:
- tty_kref_put(tty);
return room;
}