pinctrl: sunxi: 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: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/pinctrl/sunxi/pinctrl-sunxi.c b/drivers/pinctrl/sunxi/pinctrl-sunxi.c
index a437e4f8628bf75831dbcb7c83727cb67af9e60e..c53a2dbdb5cfde3957e4a563ce8580d38650e3c4 100644 (file)
--- a/drivers/pinctrl/sunxi/pinctrl-sunxi.c
+++ b/drivers/pinctrl/sunxi/pinctrl-sunxi.c
@@ -469,7 +469,7 @@ static int sunxi_pinctrl_gpio_get(struct gpio_chip *chip, unsigned offset)
        if (set_mux)
                sunxi_pmx_set(pctl->pctl_dev, offset, SUN4I_FUNC_IRQ);
 
-       return val;
+       return !!val;
 }
 
 static void sunxi_pinctrl_gpio_set(struct gpio_chip *chip,