diff mbox

[28/54] pinctrl: spmi-mpp: Be sure to clamp return value

Message ID 1450794652-23900-1-git-send-email-linus.walleij@linaro.org
State Accepted
Commit 59663a4cc5270f618e2b99d719b492bb1020deb8
Headers show

Commit Message

Linus Walleij Dec. 22, 2015, 2:30 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: Björn Andersson <bjorn.andersson@sonymobile.com>
Cc: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

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

-- 
2.4.3

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diff mbox

Patch

diff --git a/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c b/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c
index 69c14ba177d0..ea1d2b2f6fd1 100644
--- a/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c
+++ b/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c
@@ -591,7 +591,7 @@  static int pmic_mpp_get(struct gpio_chip *chip, unsigned pin)
 		pad->out_value = ret & PMIC_MPP_REG_RT_STS_VAL_MASK;
 	}
 
-	return pad->out_value;
+	return !!pad->out_value;
 }
 
 static void pmic_mpp_set(struct gpio_chip *chip, unsigned pin, int value)