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authorLinus Walleij <linus.walleij@linaro.org>2015-12-21 11:21:47 +0100
committerLinus Walleij <linus.walleij@linaro.org>2015-12-26 22:28:18 +0100
commitdb30aaef313b4d5a2f6151e61e4f3ab5e0affae4 (patch)
tree211103f56c9c8bb37c58d8841f1a98d0ea878db4 /drivers/gpio/gpio-msic.c
parentc759174e73ab4a2190244c903649032ac748586d (diff)
downloadlinux-db30aaef313b4d5a2f6151e61e4f3ab5e0affae4.tar.bz2
gpio: msic: 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. Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/gpio-msic.c')
-rw-r--r--drivers/gpio/gpio-msic.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpio/gpio-msic.c b/drivers/gpio/gpio-msic.c
index fe9ef2bc981a..9a261acb0eed 100644
--- a/drivers/gpio/gpio-msic.c
+++ b/drivers/gpio/gpio-msic.c
@@ -143,7 +143,7 @@ static int msic_gpio_get(struct gpio_chip *chip, unsigned offset)
if (ret < 0)
return ret;
- return r & MSIC_GPIO_DIN_MASK;
+ return !!(r & MSIC_GPIO_DIN_MASK);
}
static void msic_gpio_set(struct gpio_chip *chip, unsigned offset, int value)