* [patch] pinctrl: mediatek: signedness bug in mtk_pmx_gpio_request_enable()
@ 2016-02-16 20:06 Dan Carpenter
2016-02-17 1:44 ` Axel Lin
2016-02-18 23:27 ` Linus Walleij
0 siblings, 2 replies; 3+ messages in thread
From: Dan Carpenter @ 2016-02-16 20:06 UTC (permalink / raw)
To: Linus Walleij, Biao Huang
Cc: Maoguang Meng, Axel Lin, linux-gpio-u79uwXL29TY76Z2rM5mHXA,
Hongzhou Yang, kernel-janitors-u79uwXL29TY76Z2rM5mHXA,
Javier Martinez Canillas, Jonas Gorski,
linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r, Matthias Brugger,
Yingjoe Chen
"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-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
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);
^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [patch] pinctrl: mediatek: signedness bug in mtk_pmx_gpio_request_enable()
2016-02-16 20:06 [patch] pinctrl: mediatek: signedness bug in mtk_pmx_gpio_request_enable() Dan Carpenter
@ 2016-02-17 1:44 ` Axel Lin
2016-02-18 23:27 ` Linus Walleij
1 sibling, 0 replies; 3+ messages in thread
From: Axel Lin @ 2016-02-17 1:44 UTC (permalink / raw)
To: Dan Carpenter
Cc: Linus Walleij, Biao Huang, Matthias Brugger, Hongzhou Yang,
Yingjoe Chen, Javier Martinez Canillas, Maoguang Meng,
Jonas Gorski, linux-gpio@vger.kernel.org, linux-mediatek,
kernel-janitors
2016-02-17 4:06 GMT+08:00 Dan Carpenter <dan.carpenter@oracle.com>:
> "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@oracle.com>
Reviewed-by: Axel Lin <axel.lin@ingics.com>
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [patch] pinctrl: mediatek: signedness bug in mtk_pmx_gpio_request_enable()
2016-02-16 20:06 [patch] pinctrl: mediatek: signedness bug in mtk_pmx_gpio_request_enable() Dan Carpenter
2016-02-17 1:44 ` Axel Lin
@ 2016-02-18 23:27 ` Linus Walleij
1 sibling, 0 replies; 3+ messages in thread
From: Linus Walleij @ 2016-02-18 23:27 UTC (permalink / raw)
To: Dan Carpenter
Cc: Biao Huang, Matthias Brugger, Hongzhou Yang, Yingjoe Chen,
Axel Lin, Javier Martinez Canillas, Maoguang Meng, Jonas Gorski,
linux-gpio@vger.kernel.org,
moderated list:ARM/Mediatek SoC support, kernel-janitors
On Tue, Feb 16, 2016 at 9:06 PM, Dan Carpenter <dan.carpenter@oracle.com> wrote:
> "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@oracle.com>
I already applied something like this.
Yours,
Linus Walleij
^ permalink raw reply [flat|nested] 3+ messages in thread
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2016-02-16 20:06 [patch] pinctrl: mediatek: signedness bug in mtk_pmx_gpio_request_enable() Dan Carpenter
2016-02-17 1:44 ` Axel Lin
2016-02-18 23:27 ` Linus Walleij
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