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extcon: max8997: Use devm_kzalloc

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devm_kzalloc() is a device managed function. It makes error handling
and cleanup code a bit simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
This commit is contained in:
Sachin Kamat 2012-11-20 15:46:47 +09:00 committed by MyungJoo Ham
parent 2ca36f4afd
commit 0b672e9b21
1 changed files with 6 additions and 12 deletions
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18
drivers/extcon/extcon-max8997.c
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@ -433,11 +433,11 @@ static int __devinit max8997_muic_probe(struct platform_device *pdev)
struct max8997_muic_info *info;
int ret, i;
info = kzalloc(sizeof(struct max8997_muic_info), GFP_KERNEL);
info = devm_kzalloc(&pdev->dev, sizeof(struct max8997_muic_info),
GFP_KERNEL);
if (!info) {
dev_err(&pdev->dev, "failed to allocate memory\n");
ret = -ENOMEM;
goto err_kfree;
return -ENOMEM;
}
info->dev = &pdev->dev;
@ -471,7 +471,8 @@ static int __devinit max8997_muic_probe(struct platform_device *pdev)
}
/* External connector */
info->edev = kzalloc(sizeof(struct extcon_dev), GFP_KERNEL);
info->edev = devm_kzalloc(&pdev->dev, sizeof(struct extcon_dev),
GFP_KERNEL);
if (!info->edev) {
dev_err(&pdev->dev, "failed to allocate memory for extcon\n");
ret = -ENOMEM;
@ -482,7 +483,7 @@ static int __devinit max8997_muic_probe(struct platform_device *pdev)
ret = extcon_dev_register(info->edev, NULL);
if (ret) {
dev_err(&pdev->dev, "failed to register extcon device\n");
goto err_extcon;
goto err_irq;
}
/* Initialize registers according to platform data */
@ -500,13 +501,9 @@ static int __devinit max8997_muic_probe(struct platform_device *pdev)
return ret;
err_extcon:
kfree(info->edev);
err_irq:
while (--i >= 0)
free_irq(muic_irqs[i].virq, info);
kfree(info);
err_kfree:
return ret;
}
@ -521,9 +518,6 @@ static int __devexit max8997_muic_remove(struct platform_device *pdev)
extcon_dev_unregister(info->edev);
kfree(info->edev);
kfree(info);
return 0;
}