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MIPS: RB532: 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>
Cc: linux-mips@linux-mips.org
Cc: linux-gpio@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11924/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Linus Walleij 2015-12-22 15:41:19 +01:00 committed by Ralf Baechle
parent 6ea6b7faf0
commit 8eb248fa8b
1 changed files with 1 additions and 1 deletions
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2
arch/mips/rb532/gpio.c
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@ -89,7 +89,7 @@ static int rb532_gpio_get(struct gpio_chip *chip, unsigned offset)
struct rb532_gpio_chip *gpch;
gpch = container_of(chip, struct rb532_gpio_chip, chip);
return rb532_get_bit(offset, gpch->regbase + GPIOD);
return !!rb532_get_bit(offset, gpch->regbase + GPIOD);
}
/*