Hi Yang,
Thank you for your patch,
On Tue, Sep 20, 2022 at 23:30, Yang Yingliang <yangyingliang@xxxxxxxxxx> wrote:
> In the probe path, dev_err() can be replaced with dev_err_probe()
> which will check if error code is -EPROBE_DEFER and prints the
> error name. It also sets the defer probe reason which can be
> checked later through debugfs.
>
> Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
> ---
> drivers/input/keyboard/gpio_keys_polled.c | 8 ++------
> 1 file changed, 2 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/input/keyboard/gpio_keys_polled.c b/drivers/input/keyboard/gpio_keys_polled.c
> index c3937d2fc744..ba00ecfbd343 100644
> --- a/drivers/input/keyboard/gpio_keys_polled.c
> +++ b/drivers/input/keyboard/gpio_keys_polled.c
> @@ -299,13 +299,9 @@ static int gpio_keys_polled_probe(struct platform_device *pdev)
> NULL, GPIOD_IN,
> button->desc);
> if (IS_ERR(bdata->gpiod)) {
> - error = PTR_ERR(bdata->gpiod);
> - if (error != -EPROBE_DEFER)
> - dev_err(dev,
> - "failed to get gpio: %d\n",
> - error);
> fwnode_handle_put(child);
> - return error;
> + return dev_err_probe(dev, PTR_ERR(bdata->gpiod),
> + "failed to get gpio\n");
If we look at the input tree, we can see that there is no occurence of
dev_err_probe():
$ ~/src/linux/drivers/input/ 483fed3b5dc8 grep -rsn dev_err_probe
$ ~/src/linux/drivers/input/ 483fed3b5dc8
The reason for this is that the input maintainer (Dmitry) dislikes
dev_err_probe() as he stated in [1]
So I don't think he will apply this.
Regards,
Mattijs
> }
> } else if (gpio_is_valid(button->gpio)) {
> /*
> --
> 2.25.1
