[PATCH 04/54] gpio: ich: Be sure to clamp return value

[Linus Walleij <linus.walleij@xxxxxxxxxx>]

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: Aaron Sierra <asierra@xxxxxxxxxxx>
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
---
 drivers/gpio/gpio-ich.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpio/gpio-ich.c b/drivers/gpio/gpio-ich.c
index 8623d12e23c1..68e525a3cea3 100644
--- a/drivers/gpio/gpio-ich.c
+++ b/drivers/gpio/gpio-ich.c
@@ -236,9 +236,9 @@ static int ich6_gpio_get(struct gpio_chip *chip, unsigned nr)
 
 		spin_unlock_irqrestore(&ichx_priv.lock, flags);
 
-		return (data >> 16) & (1 << nr) ? 1 : 0;
+		return !!((data >> 16) & (1 << nr));
 	} else {
-		return ichx_gpio_get(chip, nr);
+		return !!ichx_gpio_get(chip, nr);
 	}
 }
 
-- 
2.4.3

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