[PATCH] pinctrl: stm32: Fix bad function call

[Alexandre TORGUE]

In stm32_pconf_parse_conf function, stm32_pmx_gpio_set_direction is
called with wrong parameter value. Indeed, using NULL value for range
will raise an oops.

Fixes: aceb16dc2da5 ("pinctrl: Add STM32 MCUs support")
Reported-by: Dan Carpenter <dan.carpen...@oracle.com>
Signed-off-by: Alexandre TORGUE <alexandre.tor...@st.com>

diff --git a/drivers/pinctrl/stm32/pinctrl-stm32.c 
b/drivers/pinctrl/stm32/pinctrl-stm32.c
index d3c5f5d..222b668 100644
--- a/drivers/pinctrl/stm32/pinctrl-stm32.c
+++ b/drivers/pinctrl/stm32/pinctrl-stm32.c
@@ -798,7 +798,7 @@ static int stm32_pconf_parse_conf(struct pinctrl_dev 
*pctldev,
                break;
        case PIN_CONFIG_OUTPUT:
                __stm32_gpio_set(bank, offset, arg);
-               ret = stm32_pmx_gpio_set_direction(pctldev, NULL, pin, false);
+               ret = stm32_pmx_gpio_set_direction(pctldev, range, pin, false);
                break;
        default:
                ret = -EINVAL;
-- 
1.9.1