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authorLinus Walleij <linus.walleij@linaro.org>2015-12-22 15:41:19 +0100
committerRalf Baechle <ralf@linux-mips.org>2016-01-24 02:22:39 +0100
commit8eb248fa8b3a3ff4174a33b797f2712fe4fed660 (patch)
tree198306c2a46f514de7739ecb7662175a77a4ff5b
parent6ea6b7faf0fbc7f2bb55277befe478c0a66659fc (diff)
MIPS: RB532: 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> Cc: linux-mips@linux-mips.org Cc: linux-gpio@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/11924/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
-rw-r--r--arch/mips/rb532/gpio.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/mips/rb532/gpio.c b/arch/mips/rb532/gpio.c
index 650d5d39f34d..fd1108543a71 100644
--- a/arch/mips/rb532/gpio.c
+++ b/arch/mips/rb532/gpio.c
@@ -89,7 +89,7 @@ static int rb532_gpio_get(struct gpio_chip *chip, unsigned offset)
struct rb532_gpio_chip *gpch;
gpch = container_of(chip, struct rb532_gpio_chip, chip);
- return rb532_get_bit(offset, gpch->regbase + GPIOD);
+ return !!rb532_get_bit(offset, gpch->regbase + GPIOD);
}
/*