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pinctrl: coh901: 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.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2015-12-21 16:25:11 +01:00
parent 3bde87714e
commit 01a62834f9
1 changed files with 1 additions and 1 deletions
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drivers/pinctrl/pinctrl-coh901.c
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@ -221,7 +221,7 @@ static int u300_gpio_get(struct gpio_chip *chip, unsigned offset)
{
struct u300_gpio *gpio = to_u300_gpio(chip);
return readl(U300_PIN_REG(offset, dir)) & U300_PIN_BIT(offset);
return !!(readl(U300_PIN_REG(offset, dir)) & U300_PIN_BIT(offset));
}
static void u300_gpio_set(struct gpio_chip *chip, unsigned offset, int value)