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pinctrl: mediatek: fix handling return value of mtk_pmx_find_gpio_mode

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The function can return negative values, so its result should
be assigned to signed variable.

The problem has been detected using coccinelle semantic patch
scripts/coccinelle/tests/assign_signed_to_unsigned.cocci.

Fixes: 59ee9c9 ('pinctrl: mediatek: Add gpio_request_enable support')
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Acked-by: Hongzhou Yang <hongzhou.yang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Andrzej Hajda 2016-02-11 15:34:08 +01:00 committed by Linus Walleij
parent 337ea0fb15
commit 740f5b08d4
1 changed files with 1 additions and 1 deletions
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2
drivers/pinctrl/mediatek/pinctrl-mtk-common.c
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@ -753,7 +753,7 @@ static int mtk_pmx_gpio_request_enable(struct pinctrl_dev *pctldev,
struct pinctrl_gpio_range *range,
unsigned offset)
{
unsigned long muxval;
int muxval;
struct mtk_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
muxval = mtk_pmx_find_gpio_mode(pctl, offset);