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[26/54] pinctrl: xway: Be sure to clamp return value

Message ID 1450794598-23771-1-git-send-email-linus.walleij@linaro.org
State New
Headers show

Commit Message

Linus Walleij Dec. 22, 2015, 2:29 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: Pramod Gurav <pramod.gurav@smartplayin.com>
Cc: John Crispin <blogic@openwrt.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/pinctrl-xway.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/drivers/pinctrl/pinctrl-xway.c b/drivers/pinctrl/pinctrl-xway.c
index e56222eac96c..ebd867f50700 100644
--- a/drivers/pinctrl/pinctrl-xway.c
+++ b/drivers/pinctrl/pinctrl-xway.c
@@ -660,7 +660,7 @@  static int xway_gpio_get(struct gpio_chip *chip, unsigned int pin)
 {
 	struct ltq_pinmux_info *info = dev_get_drvdata(chip->parent);
 
-	return gpio_getbit(info->membase[0], GPIO_IN(pin), PORT_PIN(pin));
+	return !!gpio_getbit(info->membase[0], GPIO_IN(pin), PORT_PIN(pin));
 }
 
 static int xway_gpio_dir_in(struct gpio_chip *chip, unsigned int pin)