On Fri, Apr 24, 2015 at 12:28:33PM +0200, Matthias Brugger wrote:
> 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.
The if() is removed completly in the next patch anyway.
Sascha
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