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gpio: msic: Be sure to clamp return value 

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: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2015-12-21 11:21:47 +01:00
parent c759174e73
commit db30aaef31
1 changed files with 1 additions and 1 deletions
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2
drivers/gpio/gpio-msic.c
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@ -143,7 +143,7 @@ static int msic_gpio_get(struct gpio_chip *chip, unsigned offset)
if (ret < 0)
return ret;
return r & MSIC_GPIO_DIN_MASK;
return !!(r & MSIC_GPIO_DIN_MASK);
}
static void msic_gpio_set(struct gpio_chip *chip, unsigned offset, int value)