linux-kernel - Re: [PATCH] pinctrl: pinctrl-st.c: Cleaning up if unsigned is less than zero

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Date:	Thu, 26 Jun 2014 12:47:55 +0100
From:	Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>,
	Srinivas Kandagatla <srinivas.kandagatla@...il.com>,
	Maxime Coquelin <maxime.coquelin@...com>
CC:	devicetree@...r.kernel.org, kernel@...inux.com,
	Linus Walleij <linus.walleij@...aro.org>,
	Patrice Chotard <patrice.chotard@...com>,
	linux-kernel@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
	Grant Likely <grant.likely@...aro.org>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] pinctrl: pinctrl-st.c: Cleaning up if unsigned is less
 than zero



On 26/06/14 12:32, Rickard Strandqvist wrote:
> Remove checking if a unsigned is less than zero
>
> This was found using a static code analysis program called cppcheck.
>
> Signed-off-by: Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
> ---
>   drivers/pinctrl/pinctrl-st.c |    2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/pinctrl/pinctrl-st.c b/drivers/pinctrl/pinctrl-st.c
> index 1bd6363bc9..f4ee1b1 100644
> --- a/drivers/pinctrl/pinctrl-st.c
> +++ b/drivers/pinctrl/pinctrl-st.c
> @@ -1256,7 +1256,7 @@ static int st_pctl_parse_functions(struct device_node *np,
>   	func = &info->functions[index];
>   	func->name = np->name;
>   	func->ngroups = of_get_child_count(np);
> -	if (func->ngroups <= 0) {
> +	if (func->ngroups == 0) {

Makes sense

Acked-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>


>   		dev_err(info->dev, "No groups defined\n");
>   		return -EINVAL;
>   	}
>
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