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gpio: gpioep93xx: use devm functions

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This uses devm functions for mem allocation

Signed-off-by: abdoulaye berthe <berthe.ab@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
abdoulaye berthe 2014-05-14 00:36:54 +02:00 committed by Linus Walleij
parent ae28193e01
commit 1aeede0b3c
1 changed files with 7 additions and 27 deletions
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34
drivers/gpio/gpio-ep93xx.c
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@ -344,37 +344,24 @@ static int ep93xx_gpio_probe(struct platform_device *pdev)
{
struct ep93xx_gpio *ep93xx_gpio;
struct resource *res;
void __iomem *mmio;
int i;
int ret;
struct device *dev = &pdev->dev;
ep93xx_gpio = kzalloc(sizeof(*ep93xx_gpio), GFP_KERNEL);
ep93xx_gpio = devm_kzalloc(dev, sizeof(struct ep93xx_gpio), GFP_KERNEL);
if (!ep93xx_gpio)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
ret = -ENXIO;
goto exit_free;
}
if (!request_mem_region(res->start, resource_size(res), pdev->name)) {
ret = -EBUSY;
goto exit_free;
}
mmio = ioremap(res->start, resource_size(res));
if (!mmio) {
ret = -ENXIO;
goto exit_release;
}
ep93xx_gpio->mmio_base = mmio;
ep93xx_gpio->mmio_base = devm_request_and_ioremap(dev, res);
if (IS_ERR(ep93xx_gpio->mmio_base))
return PTR_ERR(ep93xx_gpio->mmio_base);
for (i = 0; i < ARRAY_SIZE(ep93xx_gpio_banks); i++) {
struct bgpio_chip *bgc = &ep93xx_gpio->bgc[i];
struct ep93xx_gpio_bank *bank = &ep93xx_gpio_banks[i];
if (ep93xx_gpio_add_bank(bgc, &pdev->dev, mmio, bank))
if (ep93xx_gpio_add_bank(bgc, &pdev->dev,
ep93xx_gpio->mmio_base, bank))
dev_warn(&pdev->dev, "Unable to add gpio bank %s\n",
bank->label);
}
@ -382,13 +369,6 @@ static int ep93xx_gpio_probe(struct platform_device *pdev)
ep93xx_gpio_init_irq();
return 0;
exit_release:
release_mem_region(res->start, resource_size(res));
exit_free:
kfree(ep93xx_gpio);
dev_info(&pdev->dev, "%s failed with errno %d\n", __func__, ret);
return ret;
}
static struct platform_driver ep93xx_gpio_driver = {