pinctrl: spmi-gpio: 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: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Cc: Björn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c b/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c
index 3e5ccc76d59ca7bd4ccacc472b96c27255409669..4460b2c9c8bded45996320ef9d1444ab7bdbbfb6 100644 (file)
--- a/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c
+++ b/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c
@@ -533,7 +533,7 @@ static int pmic_gpio_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_gpio_set(struct gpio_chip *chip, unsigned pin, int value)