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gpio-amd8111: check ioport_map return value

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ioport_map() may fail. Its safe to check the return value.

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Varka Bhadram 2014-12-29 14:09:01 +05:30 committed by Linus Walleij
parent da9df93e9e
commit ffe4770b9b
1 changed files with 5 additions and 0 deletions
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5
drivers/gpio/gpio-amd8111.c
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@ -213,6 +213,11 @@ static int __init amd_gpio_init(void)
goto out; goto out;
} }
gp.pm = ioport_map(gp.pmbase + PMBASE_OFFSET, PMBASE_SIZE); gp.pm = ioport_map(gp.pmbase + PMBASE_OFFSET, PMBASE_SIZE);
if (!gp.pm) {
dev_err(&pdev->dev, "Couldn't map io port into io memory\n");
err = -ENOMEM;
goto out;
}
gp.pdev = pdev; gp.pdev = pdev;
gp.chip.dev = &pdev->dev; gp.chip.dev = &pdev->dev;