linux-kernel - Re: [PATCH] pinctrl: stmfx: Fix comparison of unsigned expression warnings

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Message-ID: <alpine.DEB.2.20.1905131059440.3616@hadrien>
Date:   Mon, 13 May 2019 10:59:57 +0200 (CEST)
From:   Julia Lawall <julia.lawall@...6.fr>
To:     Amelie Delaunay <amelie.delaunay@...com>
cc:     Lee Jones <lee.jones@...aro.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-stm32@...md-mailman.stormreply.com, kbuild-all@...org,
        Julia Lawall <julia.lawall@...6.fr>
Subject: Re: [PATCH] pinctrl: stmfx: Fix comparison of unsigned expression
 warnings



On Mon, 13 May 2019, Amelie Delaunay wrote:

> This patch fixes the following warnings:
>
> drivers/pinctrl/pinctrl-stmfx.c:225:5-8: WARNING: Unsigned expression
> compared with zero: dir < 0
> drivers/pinctrl/pinctrl-stmfx.c:231:5-9: WARNING: Unsigned expression
> compared with zero: pupd < 0
> drivers/pinctrl/pinctrl-stmfx.c:228:5-9: WARNING: Unsigned expression
> compared with zero: type < 0
>
> Fixes: 1490d9f841b1 ("pinctrl: Add STMFX GPIO expander Pinctrl/GPIO driver")
> Reported-by: kbuild test robot <lkp@...el.com>
> Reported-by: Julia Lawall <julia.lawall@...6.fr>
> Signed-off-by: Amelie Delaunay <amelie.delaunay@...com>

Acked-by: Julia Lawall <julia.lawall@...6.fr>


> ---
>  drivers/pinctrl/pinctrl-stmfx.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/pinctrl/pinctrl-stmfx.c b/drivers/pinctrl/pinctrl-stmfx.c
> index bcd8126..3bd5d6f 100644
> --- a/drivers/pinctrl/pinctrl-stmfx.c
> +++ b/drivers/pinctrl/pinctrl-stmfx.c
> @@ -213,7 +213,7 @@ static int stmfx_pinconf_get(struct pinctrl_dev *pctldev,
>  	struct stmfx_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
>  	u32 param = pinconf_to_config_param(*config);
>  	struct pinctrl_gpio_range *range;
> -	u32 dir, type, pupd;
> +	int dir, type, pupd;
>  	u32 arg = 0;
>  	int ret;
>
> --
> 2.7.4
>
>