Input: ab8500-ponkey - switch to using managed resources
Let's switch the driver to use managed resources, this will simplify error handling and driver unbinding logic. Signed-off-by: Himangi Saraogi <himangi774@gmail.com> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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parent
04115e410c
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7b961d5b12
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@ -7,6 +7,7 @@
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* AB8500 Power-On Key handler
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*/
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#include <linux/device.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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@ -65,12 +66,14 @@ static int ab8500_ponkey_probe(struct platform_device *pdev)
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return irq_dbr;
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}
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ponkey = kzalloc(sizeof(struct ab8500_ponkey), GFP_KERNEL);
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input = input_allocate_device();
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if (!ponkey || !input) {
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error = -ENOMEM;
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goto err_free_mem;
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}
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ponkey = devm_kzalloc(&pdev->dev, sizeof(struct ab8500_ponkey),
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GFP_KERNEL);
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if (!ponkey)
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return -ENOMEM;
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input = devm_input_allocate_device(&pdev->dev);
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if (!input)
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return -ENOMEM;
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ponkey->idev = input;
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ponkey->ab8500 = ab8500;
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@ -82,51 +85,31 @@ static int ab8500_ponkey_probe(struct platform_device *pdev)
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input_set_capability(input, EV_KEY, KEY_POWER);
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error = request_any_context_irq(ponkey->irq_dbf, ab8500_ponkey_handler,
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0, "ab8500-ponkey-dbf", ponkey);
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error = devm_request_any_context_irq(&pdev->dev, ponkey->irq_dbf,
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ab8500_ponkey_handler, 0,
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"ab8500-ponkey-dbf", ponkey);
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if (error < 0) {
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dev_err(ab8500->dev, "Failed to request dbf IRQ#%d: %d\n",
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ponkey->irq_dbf, error);
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goto err_free_mem;
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return error;
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}
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error = request_any_context_irq(ponkey->irq_dbr, ab8500_ponkey_handler,
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0, "ab8500-ponkey-dbr", ponkey);
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error = devm_request_any_context_irq(&pdev->dev, ponkey->irq_dbr,
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ab8500_ponkey_handler, 0,
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"ab8500-ponkey-dbr", ponkey);
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if (error < 0) {
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dev_err(ab8500->dev, "Failed to request dbr IRQ#%d: %d\n",
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ponkey->irq_dbr, error);
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goto err_free_dbf_irq;
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return error;
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}
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error = input_register_device(ponkey->idev);
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if (error) {
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dev_err(ab8500->dev, "Can't register input device: %d\n", error);
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goto err_free_dbr_irq;
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}
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platform_set_drvdata(pdev, ponkey);
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return 0;
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err_free_dbr_irq:
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free_irq(ponkey->irq_dbr, ponkey);
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err_free_dbf_irq:
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free_irq(ponkey->irq_dbf, ponkey);
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err_free_mem:
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input_free_device(input);
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kfree(ponkey);
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return error;
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}
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static int ab8500_ponkey_remove(struct platform_device *pdev)
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{
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struct ab8500_ponkey *ponkey = platform_get_drvdata(pdev);
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free_irq(ponkey->irq_dbf, ponkey);
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free_irq(ponkey->irq_dbr, ponkey);
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input_unregister_device(ponkey->idev);
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kfree(ponkey);
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platform_set_drvdata(pdev, ponkey);
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return 0;
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}
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@ -144,7 +127,6 @@ static struct platform_driver ab8500_ponkey_driver = {
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.of_match_table = of_match_ptr(ab8500_ponkey_match),
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},
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.probe = ab8500_ponkey_probe,
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.remove = ab8500_ponkey_remove,
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};
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module_platform_driver(ab8500_ponkey_driver);
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