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ASoC: wm8903: 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>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Linus Walleij 2015-12-22 15:50:49 +01:00 committed by Mark Brown
parent 8005c49d9a
commit b70381c35f
1 changed files with 1 additions and 1 deletions
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2
sound/soc/codecs/wm8903.c
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@ -1804,7 +1804,7 @@ static int wm8903_gpio_get(struct gpio_chip *chip, unsigned offset)
regmap_read(wm8903->regmap, WM8903_GPIO_CONTROL_1 + offset, &reg);
return (reg & WM8903_GP1_LVL_MASK) >> WM8903_GP1_LVL_SHIFT;
return !!((reg & WM8903_GP1_LVL_MASK) >> WM8903_GP1_LVL_SHIFT);
}
static int wm8903_gpio_direction_out(struct gpio_chip *chip,