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ath79: gpio-rb91x-key: use devm for mutex_init

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mutex_destroy is not called in any error paths or in _remove. Just use
devm to do so.

Removed a pointless platform_set_devdata call. Not needed with all of
the devm conversions.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/16630
Signed-off-by: Robert Marko <robimarko@gmail.com>
This commit is contained in:
Rosen Penev 2024-10-04 13:20:13 -07:00 committed by Robert Marko
parent a35bfa68d3
commit 084665698b
1 changed files with 8 additions and 4 deletions
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12
target/linux/ath79/files/drivers/gpio/gpio-rb91x-key.c
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@ -144,13 +144,19 @@ static int gpio_rb91x_key_probe(struct platform_device *pdev)
struct gpio_rb91x_key *drvdata;
struct gpio_chip *gc;
struct device *dev = &pdev->dev;
int err;
drvdata = devm_kzalloc(dev, sizeof(*drvdata), GFP_KERNEL);
if (!drvdata)
return -ENOMEM;
mutex_init(&drvdata->mutex);
mutex_init(&drvdata->poll_mutex);
err = devm_mutex_init(dev, &drvdata->mutex);
if (err)
return err;
err = devm_mutex_init(dev, &drvdata->poll_mutex);
if (err)
return err;
drvdata->gpio = devm_gpiod_get(dev, NULL, GPIOD_OUT_LOW);
if (IS_ERR(drvdata->gpio))
@ -167,8 +173,6 @@ static int gpio_rb91x_key_probe(struct platform_device *pdev)
gc->direction_output = gpio_rb91x_key_direction_output;
gc->direction_input = gpio_rb91x_key_direction_input;
platform_set_drvdata(pdev, drvdata);
return devm_gpiochip_add_data(dev, gc, drvdata);
}