linux-kernel - Re: [PATCH 06/14] pinctrl: samsung: Update error check for unsigned variables

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Message-ID: <CACRpkdZ5EyiKrUDNaa4Rkn_cbJF1yD91CcpNfwxNXAd58FP8Aw@mail.gmail.com>
Date:	Sat, 17 Nov 2012 21:31:43 +0100
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Tushar Behera <tushar.behera@...aro.org>,
	Kukjin Kim <kgene.kim@...sung.com>
Cc:	linux-kernel@...r.kernel.org, patches@...aro.org
Subject: Re: [PATCH 06/14] pinctrl: samsung: Update error check for unsigned variables

On Fri, Nov 16, 2012 at 7:50 AM, Tushar Behera <tushar.behera@...aro.org> wrote:

> Checking '< 0' for unsigned variables always returns false. For error
> codes, use IS_ERR_VALUE() instead.
>
> CC: Linus Walleij <linus.walleij@...aro.org>
> Signed-off-by: Tushar Behera <tushar.behera@...aro.org>
> ---
>  drivers/pinctrl/pinctrl-samsung.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/pinctrl/pinctrl-samsung.c b/drivers/pinctrl/pinctrl-samsung.c
> index 81c9896..3b52c17 100644
> --- a/drivers/pinctrl/pinctrl-samsung.c
> +++ b/drivers/pinctrl/pinctrl-samsung.c
> @@ -560,7 +560,7 @@ static int __devinit samsung_pinctrl_parse_dt_pins(struct platform_device *pdev,
>         const char *pin_name;
>
>         *npins = of_property_count_strings(cfg_np, "samsung,pins");
> -       if (*npins < 0) {
> +       if (IS_ERR_VALUE(*npins)) {
>                 dev_err(dev, "invalid pin list in %s node", cfg_np->name);
>                 return -EINVAL;
>         }

Acked-by: Linus Walleij <linus.walleij@...aro.org>

For this merge window Kukjin is handling the Samsung pinctrl patches,
Kukjin can you pick this to your tree to avoid any mess?

Yours,
Linus Walleij
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