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extcon: max14577: 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 <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Chanwoo Choi <[email protected]>
This commit is contained in:
Sangjung Woo 2014-04-21 19:10:11 +09:00 • committed by Chanwoo Choi
commit 14dbd54962
1 changed files with 2 additions and 7 deletions
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9
drivers/extcon/extcon-max14577.c
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@ -747,7 +747,7 @@ static int max14577_muic_probe(struct platform_device *pdev)
info->edev->name = dev_name(&pdev->dev);
info->edev->supported_cable = max14577_extcon_cable;
ret = extcon_dev_register(info->edev);
ret = devm_extcon_dev_register(&pdev->dev, info->edev);
if (ret) {
dev_err(&pdev->dev, "failed to register extcon device\n");
return ret;
@ -766,7 +766,7 @@ static int max14577_muic_probe(struct platform_device *pdev)
MAX14577_REG_DEVICEID, &id);
if (ret < 0) {
dev_err(&pdev->dev, "failed to read revision number\n");
goto err_extcon;
return ret;
}
dev_info(info->dev, "device ID : 0x%x\n", id);
@ -786,10 +786,6 @@ static int max14577_muic_probe(struct platform_device *pdev)
delay_jiffies);
return ret;
err_extcon:
extcon_dev_unregister(info->edev);
return ret;
}
static int max14577_muic_remove(struct platform_device *pdev)
@ -797,7 +793,6 @@ static int max14577_muic_remove(struct platform_device *pdev)
struct max14577_muic_info *info = platform_get_drvdata(pdev);
cancel_work_sync(&info->irq_work);
extcon_dev_unregister(info->edev);
return 0;
}