2015-04-23 10:51 GMT+02:00 Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>:
> Just because of_clk_get() doesn't mean it should be used. Use devm_clk_get
> which is the correct function when a struct device * is available. Also
> since it's a devm function we can drop the calls to clk_put(). While at
> it also fix a wrong debug message.
>
> Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
> ---
> drivers/tty/serial/8250/8250_mtk.c | 7 ++-----
> 1 file changed, 2 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/tty/serial/8250/8250_mtk.c b/drivers/tty/serial/8250/8250_mtk.c
> index 7a11fac..c6901dc 100644
> --- a/drivers/tty/serial/8250/8250_mtk.c
> +++ b/drivers/tty/serial/8250/8250_mtk.c
> @@ -131,18 +131,16 @@ static int mtk8250_probe_of(struct platform_device *pdev, struct uart_port *p,
> struct mtk8250_data *data)
> {
> int err;
> - struct device_node *np = pdev->dev.of_node;
>
> - data->uart_clk = of_clk_get(np, 0);
> + data->uart_clk = devm_clk_get(&pdev->dev, NULL);
> if (IS_ERR(data->uart_clk)) {
> - dev_warn(&pdev->dev, "Can't get timer clock\n");
> + dev_warn(&pdev->dev, "Can't get uart clock\n");
> return PTR_ERR(data->uart_clk);
> }
>
> err = clk_prepare_enable(data->uart_clk);
> if (err) {
> dev_warn(&pdev->dev, "Can't prepare clock\n");
> - clk_put(data->uart_clk);
> return err;
> }
> p->uartclk = clk_get_rate(data->uart_clk);
> @@ -216,7 +214,6 @@ static int mtk8250_remove(struct platform_device *pdev)
> serial8250_unregister_port(data->line);
> if (!IS_ERR(data->uart_clk)) {
> clk_disable_unprepare(data->uart_clk);
> - clk_put(data->uart_clk);
> }
Please delete the braces.
--
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