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extcon: palmas: Use devm_extcon_dev_register()

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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>
This commit is contained in:
Sangjung Woo 2014-04-21 19:10:14 +09:00 committed by Chanwoo Choi
parent 2923803d4f
commit b4dad55abd
1 changed files with 5 additions and 10 deletions
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15
drivers/extcon/extcon-palmas.c
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@ -192,7 +192,7 @@ static int palmas_usb_probe(struct platform_device *pdev)
palmas_usb->edev.name = kstrdup(node->name, GFP_KERNEL);
palmas_usb->edev.mutually_exclusive = mutually_exclusive;
status = extcon_dev_register(&palmas_usb->edev);
status = devm_extcon_dev_register(&pdev->dev, &palmas_usb->edev);
if (status) {
dev_err(&pdev->dev, "failed to register extcon device\n");
kfree(palmas_usb->edev.name);
@ -209,7 +209,8 @@ static int palmas_usb_probe(struct platform_device *pdev)
if (status < 0) {
dev_err(&pdev->dev, "can't get IRQ %d, err %d\n",
palmas_usb->id_irq, status);
goto fail_extcon;
kfree(palmas_usb->edev.name);
return status;
}
}
@ -223,26 +224,20 @@ static int palmas_usb_probe(struct platform_device *pdev)
if (status < 0) {
dev_err(&pdev->dev, "can't get IRQ %d, err %d\n",
palmas_usb->vbus_irq, status);
goto fail_extcon;
kfree(palmas_usb->edev.name);
return status;
}
}
palmas_enable_irq(palmas_usb);
device_set_wakeup_capable(&pdev->dev, true);
return 0;
fail_extcon:
extcon_dev_unregister(&palmas_usb->edev);
kfree(palmas_usb->edev.name);
return status;
}
static int palmas_usb_remove(struct platform_device *pdev)
{
struct palmas_usb *palmas_usb = platform_get_drvdata(pdev);
extcon_dev_unregister(&palmas_usb->edev);
kfree(palmas_usb->edev.name);
return 0;