pinctrl: baytrail: 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: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/pinctrl/intel/pinctrl-baytrail.c b/drivers/pinctrl/intel/pinctrl-baytrail.c
index bb92f8a..1fe9c198 100644
--- a/drivers/pinctrl/intel/pinctrl-baytrail.c
+++ b/drivers/pinctrl/intel/pinctrl-baytrail.c
@@ -281,7 +281,7 @@
val = readl(reg);
raw_spin_unlock_irqrestore(&vg->lock, flags);
- return val & BYT_LEVEL;
+ return !!(val & BYT_LEVEL);
}
static void byt_gpio_set(struct gpio_chip *chip, unsigned offset, int value)