Hi Olliver,
On Wed, Jan 21, 2015 at 10:33:48PM +0100, Olliver Schinagl wrote:
> diff --git a/drivers/input/keyboard/gpio_keys_polled.c
> b/drivers/input/keyboard/gpio_keys_polled.c
> index 097d721..eadb472 100644
> --- a/drivers/input/keyboard/gpio_keys_polled.c
> +++ b/drivers/input/keyboard/gpio_keys_polled.c
> @@ -125,15 +125,19 @@ static struct gpio_keys_platform_data
> *gpio_keys_polled_get_devtree_pdata(struct
> device_for_each_child_node(dev, child) {
> struct gpio_desc *desc;
>
> - desc = devm_get_gpiod_from_child(dev, NULL, child);
> + desc = devm_get_gpiod_from_child(dev, "gpio_keys_polled",
> + child);
> if (IS_ERR(desc)) {
> - error = PTR_ERR(desc);
> - if (error != -EPROBE_DEFER)
> - dev_err(dev,
> - "Failed to get gpio flags, error: %d\n",
> - error);
> - fwnode_handle_put(child);
> - return ERR_PTR(error);
> + desc = devm_get_gpiod_from_child(dev, NULL, child);
> + if (IS_ERR(desc)) {
> + error = PTR_ERR(desc);
> + if (error != -EPROBE_DEFER)
> + dev_err(dev,
> + "Failed to get gpio flags,
> error: %d\n",
> + error);
> + fwnode_handle_put(child);
> + return ERR_PTR(error);
> + }
> }
>
I do not think this is correct. If devm_get_gpiod_from_child(dev,
"gpio_keys_polled", child) retruns -EPROBE_DEFER we'll try
devm_get_gpiod_from_child(dev, NULL, child). If that returns some other
error we'll fail probing entire driver.
Did I mention how *I HATE* the -EPROBE_DEFER (the error that is not an
error)?
Thanks.
--
Dmitry
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