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@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 2 insertions, 1 deletions

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;