linux-kernel - [PATCH 2/3] pinctrl: at91: initialize config parameter to 0

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Message-Id: <1386421734-10240-2-git-send-email-alexandre.belloni@free-electrons.com>
Date:	Sat,  7 Dec 2013 14:08:53 +0100
From:	Alexandre Belloni <alexandre.belloni@...e-electrons.com>
To:	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>
Cc:	Nicolas Ferre <nicolas.ferre@...el.com>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Linus Walleij <linus.walleij@...aro.org>,
	Alexandre Belloni <alexandre.belloni@...e-electrons.com>
Subject: [PATCH 2/3] pinctrl: at91: initialize config parameter to 0

When passing a not initialized config parameter, at91_pinconf_get() would return
a bogus value. Fix that by initializing it to zero before using it.

Signed-off-by: Alexandre Belloni <alexandre.belloni@...e-electrons.com>
---
 drivers/pinctrl/pinctrl-at91.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
index 6446dc804aa7..b0b78f3468ae 100644
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -722,7 +722,8 @@ static int at91_pinconf_get(struct pinctrl_dev *pctldev,
 	unsigned pin;
 	int div;
 
-	dev_dbg(info->dev, "%s:%d, pin_id=%d, config=0x%lx", __func__, __LINE__, pin_id, *config);
+	*config = 0;
+	dev_dbg(info->dev, "%s:%d, pin_id=%d", __func__, __LINE__, pin_id);
 	pio = pin_to_controller(info, pin_to_bank(pin_id));
 	pin = pin_id % MAX_NB_GPIO_PER_BANK;
 
-- 
1.8.3.2

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