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gpio: tz1090: 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: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2015-12-21 11:48:48 +01:00
parent 9e8014fcaf
commit 9fa9079624
1 changed files with 1 additions and 1 deletions
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2
drivers/gpio/gpio-tz1090.c
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@ -214,7 +214,7 @@ static int tz1090_gpio_get(struct gpio_chip *chip, unsigned int offset)
{
struct tz1090_gpio_bank *bank = to_bank(chip);
return tz1090_gpio_read_bit(bank, REG_GPIO_DIN, offset);
return !!tz1090_gpio_read_bit(bank, REG_GPIO_DIN, offset);
}
/*