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gpio: iop: fix devm_ioremap_resource() return value checking

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devm_ioremap_resource() returns a pointer to the remapped memory or
an ERR_PTR() encoded error code on failure.  Fix the check inside
iop3xx_gpio_probe() accordingly.

Cc: Lennert Buytenhek <kernel@wantstofly.org>
Cc: Mikael Pettersson <mikpe@it.uu.se>
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2014-03-18 10:58:33 +01:00 committed by Linus Walleij
parent 523dcce72c
commit 138d876e30
1 changed files with 2 additions and 0 deletions
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2
drivers/gpio/gpio-iop.c
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@ -111,6 +111,8 @@ static int iop3xx_gpio_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(base))
return PTR_ERR(base);
return gpiochip_add(&iop3xx_chip);
}