Re: [PATCH] clk: tegra: probe deferral error reporting

[Stephen Boyd]

Quoting Marcel Ziswiler (2018-07-20 00:54:22)
> From: Marcel Ziswiler <marcel.ziswiler@xxxxxxxxxxx>
> 
> Actually report the error code from devm_regulator_get() which may as
> well just be a probe deferral.
> 
> Signed-off-by: Marcel Ziswiler <marcel.ziswiler@xxxxxxxxxxx>
> 
> ---
> 
>  drivers/clk/tegra/clk-dfll.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/clk/tegra/clk-dfll.c b/drivers/clk/tegra/clk-dfll.c
> index 48ee43734e05..b2123084e175 100644
> --- a/drivers/clk/tegra/clk-dfll.c
> +++ b/drivers/clk/tegra/clk-dfll.c
> @@ -1609,8 +1609,9 @@ int tegra_dfll_register(struct platform_device *pdev,
>  
>         td->vdd_reg = devm_regulator_get(td->dev, "vdd-cpu");
>         if (IS_ERR(td->vdd_reg)) {
> -               dev_err(td->dev, "couldn't get vdd_cpu regulator\n");
> -               return PTR_ERR(td->vdd_reg);
> +               ret = PTR_ERR(td->vdd_reg);
> +               dev_err(td->dev, "couldn't get vdd_cpu regulator: %d\n", ret);

Do you want to know that a probe defer is happening? Usually patches are
sent to make that error path silent.