pinctrl: coh901: 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>
diff --git a/drivers/pinctrl/pinctrl-coh901.c b/drivers/pinctrl/pinctrl-coh901.c
index e1cbf56..ca0fa79 100644
--- a/drivers/pinctrl/pinctrl-coh901.c
+++ b/drivers/pinctrl/pinctrl-coh901.c
@@ -221,7 +221,7 @@
{
struct u300_gpio *gpio = to_u300_gpio(chip);
- return readl(U300_PIN_REG(offset, dir)) & U300_PIN_BIT(offset);
+ return !!(readl(U300_PIN_REG(offset, dir)) & U300_PIN_BIT(offset));
}
static void u300_gpio_set(struct gpio_chip *chip, unsigned offset, int value)