From: Dan Carpenter <dan.carpenter-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org> To: Linus Walleij <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>, Biao Huang <biao.huang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org> Cc: Maoguang Meng <maoguang.meng-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>, Axel Lin <axel.lin-8E1dMatC8ynQT0dZR+AlfA@public.gmane.org>, linux-gpio-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Hongzhou Yang <hongzhou.yang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>, kernel-janitors-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Javier Martinez Canillas <javier-JPH+aEBZ4P+UEJcrhfAQsw@public.gmane.org>, Jonas Gorski <jogo-p3rKhJxN3npAfugRpC6u6w@public.gmane.org>, linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, Matthias Brugger <matthias.bgg-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, Yingjoe Chen <yingjoe.chen-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org> Subject: [patch] pinctrl: mediatek: signedness bug in mtk_pmx_gpio_request_enable() Date: Tue, 16 Feb 2016 23:06:58 +0300 [thread overview] Message-ID: <20160216200658.GA9223@mwanda> (raw) "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);
WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com> To: Linus Walleij <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>, Biao Huang <biao.huang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org> Cc: Maoguang Meng <maoguang.meng-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>, Axel Lin <axel.lin-8E1dMatC8ynQT0dZR+AlfA@public.gmane.org>, linux-gpio-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Hongzhou Yang <hongzhou.yang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>, kernel-janitors-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Javier Martinez Canillas <javier-JPH+aEBZ4P+UEJcrhfAQsw@public.gmane.org>, Jonas Gorski <jogo-p3rKhJxN3npAfugRpC6u6w@public.gmane.org>, linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, Matthias Brugger <matthias.bgg-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, Yingjoe Chen <yingjoe.chen-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org> Subject: [patch] pinctrl: mediatek: signedness bug in mtk_pmx_gpio_request_enable() Date: Tue, 16 Feb 2016 20:06:58 +0000 [thread overview] Message-ID: <20160216200658.GA9223@mwanda> (raw) "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> 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);
next reply other threads:[~2016-02-16 20:06 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-02-16 20:06 Dan Carpenter [this message] 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 2016-02-17 1:44 ` Axel Lin 2016-02-18 23:27 ` Linus Walleij 2016-02-18 23:27 ` Linus Walleij
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