[31/54] pinctrl: sunxi: Be sure to clamp return value

Message ID 1450794761-24377-1-git-send-email-linus.walleij@linaro.org
State New
Headers show

Commit Message

Linus Walleij Dec. 22, 2015, 2:32 p.m.
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: Chen-Yu Tsai <wens@csie.org>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

---
 drivers/pinctrl/sunxi/pinctrl-sunxi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

-- 
2.4.3

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diff --git a/drivers/pinctrl/sunxi/pinctrl-sunxi.c b/drivers/pinctrl/sunxi/pinctrl-sunxi.c
index a437e4f8628b..c53a2dbdb5cf 100644
--- 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,