extcon: gpio: Use devm_extcon_dev_register()
Use the resource-managed extcon device register function (i.e. devm_extcon_dev_register()) instead of extcon_dev_register(). If extcon device is attached with this function, that extcon device is automatically unregistered on driver detach. That reduces tiresome managing code. Signed-off-by: Sangjung Woo <sangjung.woo@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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parent
4b5dd73883
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@ -121,34 +121,27 @@ static int gpio_extcon_probe(struct platform_device *pdev)
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msecs_to_jiffies(pdata->debounce);
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}
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ret = extcon_dev_register(&extcon_data->edev);
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ret = devm_extcon_dev_register(&pdev->dev, &extcon_data->edev);
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if (ret < 0)
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return ret;
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INIT_DELAYED_WORK(&extcon_data->work, gpio_extcon_work);
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extcon_data->irq = gpio_to_irq(extcon_data->gpio);
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if (extcon_data->irq < 0) {
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ret = extcon_data->irq;
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goto err;
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}
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if (extcon_data->irq < 0)
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return extcon_data->irq;
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ret = request_any_context_irq(extcon_data->irq, gpio_irq_handler,
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pdata->irq_flags, pdev->name,
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extcon_data);
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if (ret < 0)
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goto err;
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return ret;
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platform_set_drvdata(pdev, extcon_data);
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/* Perform initial detection */
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gpio_extcon_work(&extcon_data->work.work);
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return 0;
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err:
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extcon_dev_unregister(&extcon_data->edev);
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return ret;
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}
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static int gpio_extcon_remove(struct platform_device *pdev)
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@ -157,7 +150,6 @@ static int gpio_extcon_remove(struct platform_device *pdev)
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cancel_delayed_work_sync(&extcon_data->work);
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free_irq(extcon_data->irq, extcon_data);
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extcon_dev_unregister(&extcon_data->edev);
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return 0;
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}
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