Commit 9fa90796 authored Dec 21, 2015 by Linus Walleij

gpio: tz1090: 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: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

parent 9e8014fc

drivers/gpio/gpio-tz1090.c

+1 −1

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

		/*