linux-kernel - [PATCH] gpio/gpio-ich: make ichx_gpio_check_available() return a pure boolean value

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Date:	Thu,  7 Mar 2013 10:48:19 +0200
From:	Mika Westerberg <mika.westerberg@...ux.intel.com>
To:	linux-kernel@...r.kernel.org
Cc:	Peter Tyser <ptyser@...-inc.com>,
	Grant Likely <grant.likely@...retlab.ca>,
	Linus Walleij <linus.walleij@...aro.org>,
	Mika Westerberg <mika.westerberg@...ux.intel.com>
Subject: [PATCH] gpio/gpio-ich: make ichx_gpio_check_available() return a pure boolean value

It is more readable for humans to use double-bang (!!) to convert the value
to pure boolean before it is returned.

Signed-off-by: Mika Westerberg <mika.westerberg@...ux.intel.com>
---
 drivers/gpio/gpio-ich.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-ich.c b/drivers/gpio/gpio-ich.c
index f9dbd50..22ea0be 100644
--- a/drivers/gpio/gpio-ich.c
+++ b/drivers/gpio/gpio-ich.c
@@ -130,7 +130,7 @@ static int ichx_read_bit(int reg, unsigned nr)
 
 static bool ichx_gpio_check_available(struct gpio_chip *gpio, unsigned nr)
 {
-	return ichx_priv.use_gpio & (1 << (nr / 32));
+	return !!(ichx_priv.use_gpio & (1 << (nr / 32)));
 }
 
 static int ichx_gpio_direction_input(struct gpio_chip *gpio, unsigned nr)
-- 
1.7.10.4

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