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extcon: max77693: 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 15:46:50 +09:00 committed by MyungJoo Ham
parent 0b672e9b21
commit f4bb5cb54e
1 changed files with 8 additions and 15 deletions
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23
drivers/extcon/extcon-max77693.c
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@ -657,11 +657,11 @@ static int __devinit max77693_muic_probe(struct platform_device *pdev)
int ret, i;
u8 id;
info = kzalloc(sizeof(struct max77693_muic_info), GFP_KERNEL);
info = devm_kzalloc(&pdev->dev, sizeof(struct max77693_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;
info->max77693 = max77693;
@ -672,10 +672,9 @@ static int __devinit max77693_muic_probe(struct platform_device *pdev)
info->max77693->muic,
&max77693_muic_regmap_config);
if (IS_ERR(info->max77693->regmap_muic)) {
ret = PTR_ERR(info->max77693->regmap_muic);
dev_err(max77693->dev,
"failed to allocate register map: %d\n", ret);
goto err_regmap;
return PTR_ERR(info->max77693->regmap_muic);
}
}
platform_set_drvdata(pdev, info);
@ -709,7 +708,8 @@ static int __devinit max77693_muic_probe(struct platform_device *pdev)
}
/* Initialize extcon device */
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;
@ -720,7 +720,7 @@ static int __devinit max77693_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 MUIC register by using platform data */
@ -753,7 +753,7 @@ static int __devinit max77693_muic_probe(struct platform_device *pdev)
MAX77693_MUIC_REG_ID, &id);
if (ret < 0) {
dev_err(&pdev->dev, "failed to read revision number\n");
goto err_extcon;
goto err_irq;
}
dev_info(info->dev, "device ID : 0x%x\n", id);
@ -765,14 +765,9 @@ static int __devinit max77693_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);
err_regmap:
kfree(info);
err_kfree:
return ret;
}
@ -785,8 +780,6 @@ static int __devexit max77693_muic_remove(struct platform_device *pdev)
free_irq(muic_irqs[i].virq, info);
cancel_work_sync(&info->irq_work);
extcon_dev_unregister(info->edev);
kfree(info->edev);
kfree(info);
return 0;
}