linux-kernel - [PATCH 4.9 24/41] pinctrl: stm32: Fix bad function call

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Message-Id: <20170710171052.884872048@linuxfoundation.org>
Date:   Mon, 10 Jul 2017 19:10:57 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Dan Carpenter <dan.carpenter@...cle.com>,
        Alexandre TORGUE <alexandre.torgue@...com>,
        Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH 4.9 24/41] pinctrl: stm32: Fix bad function call

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alexandre TORGUE <alexandre.torgue@...com>

commit b7c747d4627462f25b3daabf49c18895a6722faa upstream.

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.carpenter@...cle.com>
Signed-off-by: Alexandre TORGUE <alexandre.torgue@...com>
Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/pinctrl/stm32/pinctrl-stm32.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- 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
 		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;