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authorLinus Walleij <linus.walleij@linaro.org>2015-12-21 15:25:11 (GMT)
committerLinus Walleij <linus.walleij@linaro.org>2015-12-26 21:28:34 (GMT)
commit01a62834f983455806b9e522c33d2670b83b1e52 (patch)
tree6ea9dbb39ac3160a0683df1125523341d5775678 /drivers/pinctrl
parent3bde87714e79c7ff342e98ccafca07d69d91c7b8 (diff)
downloadlinux-01a62834f983455806b9e522c33d2670b83b1e52.tar.xz
pinctrl: coh901: 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. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl')
-rw-r--r--drivers/pinctrl/pinctrl-coh901.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pinctrl/pinctrl-coh901.c b/drivers/pinctrl/pinctrl-coh901.c
index e1cbf56..ca0fa79 100644
--- a/drivers/pinctrl/pinctrl-coh901.c
+++ b/drivers/pinctrl/pinctrl-coh901.c
@@ -221,7 +221,7 @@ static int u300_gpio_get(struct gpio_chip *chip, unsigned offset)
{
struct u300_gpio *gpio = to_u300_gpio(chip);
- return readl(U300_PIN_REG(offset, dir)) & U300_PIN_BIT(offset);
+ return !!(readl(U300_PIN_REG(offset, dir)) & U300_PIN_BIT(offset));
}
static void u300_gpio_set(struct gpio_chip *chip, unsigned offset, int value)