From 6a681b61470e1daf4fd51581c21147f92fe7b75d Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 21 Dec 2015 11:36:28 +0100 Subject: gpio: sa1100: 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. Cc: Russell King Cc: Dmitry Eremin-Solenikov Cc: Kristoffer Ericson Signed-off-by: Linus Walleij --- drivers/gpio/gpio-sa1100.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/gpio/gpio-sa1100.c') diff --git a/drivers/gpio/gpio-sa1100.c b/drivers/gpio/gpio-sa1100.c index 990fa9023e22..9d590166e952 100644 --- a/drivers/gpio/gpio-sa1100.c +++ b/drivers/gpio/gpio-sa1100.c @@ -17,7 +17,7 @@ static int sa1100_gpio_get(struct gpio_chip *chip, unsigned offset) { - return GPLR & GPIO_GPIO(offset); + return !!(GPLR & GPIO_GPIO(offset)); } static void sa1100_gpio_set(struct gpio_chip *chip, unsigned offset, int value) -- cgit v1.2.3