Re: [PATCH] regulator: add missing call to of_node_put()

[Cristian Marussi]

Hi,

thanks for reporting this, you're right but you've missed the braces
around the if block in your patch, because we really want to exit
only on -ENOMEM. Something like:

        if (ret == -ENOMEM) {
                of_node_put(child);
                return ret;
        }

Regards,

Cristian

On Thu, Feb 25, 2021 at 05:07:26PM +0800, Yang Li wrote:
> In one of the error paths of the for_each_child_of_node() loop,
> add missing call to of_node_put().
> 
> Fix the following coccicheck warning:
> ./drivers/regulator/scmi-regulator.c:343:1-23: WARNING: Function
> "for_each_child_of_node" should have of_node_put() before return around
> line 347.
> 
> Reported-by: Abaci Robot <ab...@linux.alibaba.com>
> Signed-off-by: Yang Li <yang....@linux.alibaba.com>
> ---
>  drivers/regulator/scmi-regulator.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/regulator/scmi-regulator.c 
> b/drivers/regulator/scmi-regulator.c
> index 0e8b3ca..a41bb06 100644
> --- a/drivers/regulator/scmi-regulator.c
> +++ b/drivers/regulator/scmi-regulator.c
> @@ -344,6 +344,7 @@ static int scmi_regulator_probe(struct scmi_device *sdev)
>               ret = process_scmi_regulator_of_node(sdev, child, rinfo);
>               /* abort on any mem issue */
>               if (ret == -ENOMEM)
> +                     of_node_put(child);
>                       return ret;
>       }
>  
> -- 
> 1.8.3.1
>