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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>
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19b85cfb19
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0b53861230
1 changed files with 1 additions and 11 deletions
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@ -667,31 +667,21 @@ static int pop_tx_x(struct eg20t_port *priv, unsigned char *buf)
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static int dma_push_rx(struct eg20t_port *priv, int size)
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{
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struct tty_struct *tty;
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int room;
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struct uart_port *port = &priv->port;
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struct tty_port *tport = &port->state->port;
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port = &priv->port;
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tty = tty_port_tty_get(tport);
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if (!tty) {
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dev_dbg(priv->port.dev, "%s:tty is busy now", __func__);
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return 0;
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}
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room = tty_buffer_request_room(tport, size);
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if (room < size)
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dev_warn(port->dev, "Rx overrun: dropping %u bytes\n",
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size - room);
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if (!room)
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goto out;
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return 0;
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tty_insert_flip_string(tport, sg_virt(&priv->sg_rx), size);
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port->icount.rx += room;
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out:
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tty_kref_put(tty);
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return room;
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}
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