linux-kernel - Re: [PATCH 04/14] power: supply: sc27xx: Replace devm_add_action() followed by failure action with devm_add_action_or

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Date:   Tue, 9 Jul 2019 13:44:27 +0800
From:   Baolin Wang <baolin.wang@...aro.org>
To:     Fuqian Huang <huangfq.daxian@...il.com>
Cc:     Sebastian Reichel <sre@...nel.org>,
        Linux PM list <linux-pm@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 04/14] power: supply: sc27xx: Replace devm_add_action()
 followed by failure action with devm_add_action_or_reset()

Hi Fuqian,

On Mon, 8 Jul 2019 at 20:33, Fuqian Huang <huangfq.daxian@...il.com> wrote:
>
> devm_add_action_or_reset() is introduced as a helper function which
> internally calls devm_add_action(). If devm_add_action() fails
> then it will execute the action mentioned and return the error code.
> This reduce source code size (avoid writing the action twice)
> and reduce the likelyhood of bugs.
>
> Signed-off-by: Fuqian Huang <huangfq.daxian@...il.com>

Looks good to me. Thanks.
Reviewed-by: Baolin Wang <baolin.wang@...aro.org>

> ---
>  drivers/power/supply/sc27xx_fuel_gauge.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/power/supply/sc27xx_fuel_gauge.c b/drivers/power/supply/sc27xx_fuel_gauge.c
> index 9c184d80088b..58b2970cd359 100644
> --- a/drivers/power/supply/sc27xx_fuel_gauge.c
> +++ b/drivers/power/supply/sc27xx_fuel_gauge.c
> @@ -1023,9 +1023,8 @@ static int sc27xx_fgu_probe(struct platform_device *pdev)
>                 return ret;
>         }
>
> -       ret = devm_add_action(dev, sc27xx_fgu_disable, data);
> +       ret = devm_add_action_or_reset(dev, sc27xx_fgu_disable, data);
>         if (ret) {
> -               sc27xx_fgu_disable(data);
>                 dev_err(dev, "failed to add fgu disable action\n");
>                 return ret;
>         }
> --
> 2.11.0
>


-- 
Baolin Wang
Best Regards