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pinctrl/nomadik: simplify GPIO probe

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Instead of jumping to a label later in the probe just return
with an error code whenever probe() fails. Make sure to remove
the gpiochip on irqdomain error now that we're at it.

Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2013-01-07 14:04:56 +01:00
parent aa6e379aef
commit 50f690d85e
1 changed files with 17 additions and 35 deletions
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52
drivers/pinctrl/pinctrl-nomadik.c
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@ -1341,8 +1341,7 @@ static int nmk_gpio_probe(struct platform_device *dev)
if (of_property_read_u32(np, "gpio-bank", &dev->id)) {
dev_err(&dev->dev, "gpio-bank property not found\n");
ret = -EINVAL;
goto out;
return -EINVAL;
}
pdata->first_gpio = dev->id * NMK_GPIO_PER_CHIP;
@ -1350,41 +1349,29 @@ static int nmk_gpio_probe(struct platform_device *dev)
}
res = platform_get_resource(dev, IORESOURCE_MEM, 0);
if (!res) {
ret = -ENOENT;
goto out;
}
if (!res)
return -ENOENT;
irq = platform_get_irq(dev, 0);
if (irq < 0) {
ret = irq;
goto out;
}
if (irq < 0)
return irq;
secondary_irq = platform_get_irq(dev, 1);
if (secondary_irq >= 0 && !pdata->get_secondary_status) {
ret = -EINVAL;
goto out;
}
if (secondary_irq >= 0 && !pdata->get_secondary_status)
return -EINVAL;
base = devm_request_and_ioremap(&dev->dev, res);
if (!base) {
ret = -ENOMEM;
goto out;
}
if (!base)
return -ENOMEM;
clk = devm_clk_get(&dev->dev, NULL);
if (IS_ERR(clk)) {
ret = PTR_ERR(clk);
goto out;
}
if (IS_ERR(clk))
return PTR_ERR(clk);
clk_prepare(clk);
nmk_chip = devm_kzalloc(&dev->dev, sizeof(*nmk_chip), GFP_KERNEL);
if (!nmk_chip) {
ret = -ENOMEM;
goto out;
}
if (!nmk_chip)
return -ENOMEM;
/*
* The virt address in nmk_chip->addr is in the nomadik register space,
@ -1418,7 +1405,7 @@ static int nmk_gpio_probe(struct platform_device *dev)
ret = gpiochip_add(&nmk_chip->chip);
if (ret)
goto out;
return ret;
BUG_ON(nmk_chip->bank >= ARRAY_SIZE(nmk_gpio_chips));
@ -1433,8 +1420,9 @@ static int nmk_gpio_probe(struct platform_device *dev)
&nmk_gpio_irq_simple_ops, nmk_chip);
if (!nmk_chip->domain) {
dev_err(&dev->dev, "failed to create irqdomain\n");
ret = -ENOSYS;
goto out;
/* Just do this, no matter if it fails */
ret = gpiochip_remove(&nmk_chip->chip);
return -ENOSYS;
}
nmk_gpio_init_irq(nmk_chip);
@ -1442,12 +1430,6 @@ static int nmk_gpio_probe(struct platform_device *dev)
dev_info(&dev->dev, "at address %p\n", nmk_chip->addr);
return 0;
out:
dev_err(&dev->dev, "Failure %i for GPIO %i-%i\n", ret,
pdata->first_gpio, pdata->first_gpio+31);
return ret;
}
static int nmk_get_groups_cnt(struct pinctrl_dev *pctldev)