Re: [LINUX PATCH V3 3/9] gpio: gpio-xilinx: Add clock support

[Linus Walleij <linus.walleij@xxxxxxxxxx>]

On Thu, Nov 12, 2020 at 6:13 PM Srinivas Neeli
<srinivas.neeli@xxxxxxxxxx> wrote:

> Adds clock support to the Xilinx GPIO driver.
>
> Signed-off-by: Srinivas Neeli <srinivas.neeli@xxxxxxxxxx>

(...)
> +       chip->clk = devm_clk_get_optional(&pdev->dev, NULL);
> +       if (IS_ERR(chip->clk)) {
> +               if (PTR_ERR(chip->clk) != -EPROBE_DEFER)
> +                       dev_dbg(&pdev->dev, "Input clock not found\n");
> +               return PTR_ERR(chip->clk);
> +       }

You can now use return dev_err_probe(dev, ret, "failed to get clock\n");
to avoid all the comparing with -EPROBE_DEFER.

Yours,
Linus Walleij