"muxval" stores a value from 0-255 or a negative error code. It has to
be signed for the error handling to work.
Fixes: 59ee9c96dd5d ('pinctrl: mediatek: Add gpio_request_enable support')
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
index cbc2204..1fbaf28 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
@@ -755,14 +755,14 @@ 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);
if (muxval < 0) {
dev_err(pctl->dev, "invalid gpio pin %d.\n", offset);
- return -EINVAL;
+ return muxval;
}
mtk_pmx_set_mode(pctldev, offset, muxval);
--
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