linux-kernel - Re: [PATCH] OPP: fix error code in dev_pm_opp_set

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Message-ID: <CAKohpo=x6CvzwcJjYscV6qTdj=K3qECjwNj-EV5L4n8O+-WoTw@mail.gmail.com>
Date: Fri, 20 Sep 2024 01:09:11 +0530
From: Viresh Kumar <viresh.kumar@...aro.org>
To: Dan Carpenter <dan.carpenter@...aro.org>
Cc: Viresh Kumar <vireshk@...nel.org>, Nishanth Menon <nm@...com>, Stephen Boyd <sboyd@...nel.org>, 
	Ulf Hansson <ulf.hansson@...aro.org>, linux-pm@...r.kernel.org, 
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] OPP: fix error code in dev_pm_opp_set_config()

On Mon, 16 Sept 2024 at 19:37, Dan Carpenter <dan.carpenter@...aro.org> wrote:
>
> This is an error path so set the error code.  Smatch complains about the
> current code:
>
>     drivers/opp/core.c:2660 dev_pm_opp_set_config()
>     error: uninitialized symbol 'ret'.
>
> Fixes: e37440e7e2c2 ("OPP: Call dev_pm_opp_set_opp() for required OPPs")
> Signed-off-by: Dan Carpenter <dan.carpenter@...aro.org>
> ---
>  drivers/opp/core.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/opp/core.c b/drivers/opp/core.c
> index 494f8860220d..3aa18737470f 100644
> --- a/drivers/opp/core.c
> +++ b/drivers/opp/core.c
> @@ -2630,8 +2630,10 @@ int dev_pm_opp_set_config(struct device *dev, struct dev_pm_opp_config *config)
>
>         /* Attach genpds */
>         if (config->genpd_names) {
> -               if (config->required_devs)
> +               if (config->required_devs) {
> +                       ret = -EINVAL;
>                         goto err;
> +               }
>
>                 ret = _opp_attach_genpd(opp_table, dev, config->genpd_names,
>                                         config->virt_devs);

Acked-by: Viresh Kumar <viresh.kumar@...aro.org>

(Ulf should be picking this patch for now)