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gpio: rdc321x: Convert to use devm_kzalloc 

This saves a few unwind code.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Axel Lin 2014-04-11 14:16:01 +08:00 committed by Linus Walleij
parent df0c6c8023
commit 95ad6b9da5
1 changed files with 6 additions and 13 deletions
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19
drivers/gpio/gpio-rdc321x.c
View File

@ -141,7 +141,8 @@ static int rdc321x_gpio_probe(struct platform_device *pdev)
return -ENODEV;
}
rdc321x_gpio_dev = kzalloc(sizeof(struct rdc321x_gpio), GFP_KERNEL);
rdc321x_gpio_dev = devm_kzalloc(&pdev->dev, sizeof(struct rdc321x_gpio),
GFP_KERNEL);
if (!rdc321x_gpio_dev) {
dev_err(&pdev->dev, "failed to allocate private data\n");
return -ENOMEM;
@ -150,8 +151,7 @@ static int rdc321x_gpio_probe(struct platform_device *pdev)
r = platform_get_resource_byname(pdev, IORESOURCE_IO, "gpio-reg1");
if (!r) {
dev_err(&pdev->dev, "failed to get gpio-reg1 resource\n");
err = -ENODEV;
goto out_free;
return -ENODEV;
}
spin_lock_init(&rdc321x_gpio_dev->lock);
@ -162,8 +162,7 @@ static int rdc321x_gpio_probe(struct platform_device *pdev)
r = platform_get_resource_byname(pdev, IORESOURCE_IO, "gpio-reg2");
if (!r) {
dev_err(&pdev->dev, "failed to get gpio-reg2 resource\n");
err = -ENODEV;
goto out_free;
return -ENODEV;
}
rdc321x_gpio_dev->reg2_ctrl_base = r->start;
@ -187,21 +186,17 @@ static int rdc321x_gpio_probe(struct platform_device *pdev)
rdc321x_gpio_dev->reg1_data_base,
&rdc321x_gpio_dev->data_reg[0]);
if (err)
goto out_free;
return err;
err = pci_read_config_dword(rdc321x_gpio_dev->sb_pdev,
rdc321x_gpio_dev->reg2_data_base,
&rdc321x_gpio_dev->data_reg[1]);
if (err)
goto out_free;
return err;
dev_info(&pdev->dev, "registering %d GPIOs\n",
rdc321x_gpio_dev->chip.ngpio);
return gpiochip_add(&rdc321x_gpio_dev->chip);
out_free:
kfree(rdc321x_gpio_dev);
return err;
}
static int rdc321x_gpio_remove(struct platform_device *pdev)
@ -213,8 +208,6 @@ static int rdc321x_gpio_remove(struct platform_device *pdev)
if (ret)
dev_err(&pdev->dev, "failed to unregister chip\n");
kfree(rdc321x_gpio_dev);
return ret;
}