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gpio: intel-mid: Be sure to clamp return value

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As we want gpio_chip .get() calls to be able to return negative
error codes and propagate to drivers, we need to go over all
drivers and make sure their return values are clamped to [0,1].
We do this by using the ret = !!(val) design pattern.

Acked-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2015-12-21 11:00:56 +01:00
parent 8388f2909c
commit 4c628f3de6
1 changed files with 1 additions and 1 deletions
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2
drivers/gpio/gpio-intel-mid.c
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@ -120,7 +120,7 @@ static int intel_gpio_get(struct gpio_chip *chip, unsigned offset)
{
void __iomem *gplr = gpio_reg(chip, offset, GPLR);
return readl(gplr) & BIT(offset % 32);
return !!(readl(gplr) & BIT(offset % 32));
}
static void intel_gpio_set(struct gpio_chip *chip, unsigned offset, int value)