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Subject[PATCH v2] input: misc: soc_button_array: use platform_device_register_resndata()
Date
From: Enrico Weigelt <info@metux.net>

The registration of gpio-keys device can be written much shorter
by using the platform_device_register_resndata() helper.

v2:
* pass &pdev->dev to platform_device_register_resndata()
* fixed errval on failed platform_device_register_resndata()

Signed-off-by: Enrico Weigelt <info@metux.net>
---
drivers/input/misc/soc_button_array.c | 27 +++++++++++++--------------
1 file changed, 13 insertions(+), 14 deletions(-)

diff --git a/drivers/input/misc/soc_button_array.c b/drivers/input/misc/soc_button_array.c
index 5e59f8e5..27550f9 100644
--- a/drivers/input/misc/soc_button_array.c
+++ b/drivers/input/misc/soc_button_array.c
@@ -110,25 +110,24 @@ static int soc_button_lookup_gpio(struct device *dev, int acpi_index)
gpio_keys_pdata->nbuttons = n_buttons;
gpio_keys_pdata->rep = autorepeat;

- pd = platform_device_alloc("gpio-keys", PLATFORM_DEVID_AUTO);
- if (!pd) {
- error = -ENOMEM;
+ pd = platform_device_register_resndata(
+ &pdev->dev,
+ "gpio-keys",
+ PLATFORM_DEVID_AUTO,
+ NULL,
+ 0,
+ gpio_keys_pdata,
+ sizeof(*gpio_keys_pdata));
+
+ error = PTR_ERR_OR_ZERO(pd);
+
+ if (IS_ERR(pd)) {
+ dev_err(&pdev->dev, "failed registering gpio-keys: %ld\n", PTR_ERR(pd));
goto err_free_mem;
}

- error = platform_device_add_data(pd, gpio_keys_pdata,
- sizeof(*gpio_keys_pdata));
- if (error)
- goto err_free_pdev;
-
- error = platform_device_add(pd);
- if (error)
- goto err_free_pdev;
-
return pd;

-err_free_pdev:
- platform_device_put(pd);
err_free_mem:
devm_kfree(&pdev->dev, gpio_keys_pdata);
return ERR_PTR(error);
--
1.9.1
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