Commit 8eb248fa authored Dec 22, 2015 by Linus Walleij Committed by Ralf Baechle Jan 24, 2016

MIPS: RB532: 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.

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>

parent 6ea6b7fa

arch/mips/rb532/gpio.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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);
		}

		/*