leds: max8997: Use devm_led_classdev_register
Switch to resource-managed function devm_led_classdev_register instead of led_classdev_register and remove unneeded led_classdev_unregister. Also, remove platform_set_drvdata in probe function and the remove function, max8997_led_remove as it is now has nothing to do. The Coccinelle semantic patch used to make this change is as follows: //<smpl> @platform@ identifier p, probefn, removefn; @@ struct platform_driver p = { .probe = probefn, .remove = removefn, }; @prb@ identifier platform.probefn, pdev; expression e; @@ probefn(struct platform_device *pdev, ...) { ... e = - led_classdev_register + devm_led_classdev_register (...); ... ?- led_classdev_unregister(...); ... } @remove depends on prb@ identifier platform.removefn; @@ removefn(...) { ... ?- led_classdev_unregister(...); ... } //</smpl> Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
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@ -281,30 +281,18 @@ static int max8997_led_probe(struct platform_device *pdev)
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mutex_init(&led->mutex);
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mutex_init(&led->mutex);
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platform_set_drvdata(pdev, led);
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ret = devm_led_classdev_register(&pdev->dev, &led->cdev);
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ret = led_classdev_register(&pdev->dev, &led->cdev);
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if (ret < 0)
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if (ret < 0)
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return ret;
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return ret;
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return 0;
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return 0;
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}
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}
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static int max8997_led_remove(struct platform_device *pdev)
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{
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struct max8997_led *led = platform_get_drvdata(pdev);
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led_classdev_unregister(&led->cdev);
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return 0;
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}
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static struct platform_driver max8997_led_driver = {
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static struct platform_driver max8997_led_driver = {
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.driver = {
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.driver = {
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.name = "max8997-led",
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.name = "max8997-led",
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},
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},
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.probe = max8997_led_probe,
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.probe = max8997_led_probe,
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.remove = max8997_led_remove,
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};
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};
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module_platform_driver(max8997_led_driver);
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module_platform_driver(max8997_led_driver);
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