From: Linus Walleij Date: Mon, 21 Dec 2015 15:31:06 +0000 (+0100) Subject: pinctrl: spmi-mpp: Be sure to clamp return value X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=59663a4cc5270f618e2b99d719b492bb1020deb8;p=linux-beck.git pinctrl: spmi-mpp: 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: Björn Andersson Cc: Ivan T. Ivanov Signed-off-by: Linus Walleij --- diff --git a/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c b/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c index 69c14ba177d0..ea1d2b2f6fd1 100644 --- a/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c +++ b/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c @@ -591,7 +591,7 @@ static int pmic_mpp_get(struct gpio_chip *chip, unsigned pin) pad->out_value = ret & PMIC_MPP_REG_RT_STS_VAL_MASK; } - return pad->out_value; + return !!pad->out_value; } static void pmic_mpp_set(struct gpio_chip *chip, unsigned pin, int value)