diff mbox

[24/54] pinctrl: baytrail: Be sure to clamp return value

Message ID 1450794528-23650-1-git-send-email-linus.walleij@linaro.org
State Accepted
Commit 3bde87714e79c7ff342e98ccafca07d69d91c7b8
Headers show

Commit Message

Linus Walleij Dec. 22, 2015, 2:28 p.m. UTC
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: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

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

-- 
2.4.3

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diff mbox

Patch

diff --git a/drivers/pinctrl/intel/pinctrl-baytrail.c b/drivers/pinctrl/intel/pinctrl-baytrail.c
index bb92f8ae6b33..1fe9c1989353 100644
--- a/drivers/pinctrl/intel/pinctrl-baytrail.c
+++ b/drivers/pinctrl/intel/pinctrl-baytrail.c
@@ -281,7 +281,7 @@  static int byt_gpio_get(struct gpio_chip *chip, unsigned offset)
 	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)