linux-kernel - Re: [PATCH] of: overlay: fix warning being reported as error in add_changeset

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Message-ID: <a7e15b62-8929-b76e-77d7-42d78aaa02e1@gmail.com>
Date:   Mon, 2 Jan 2023 08:35:56 -0600
From:   Frank Rowand <frowand.list@...il.com>
To:     "Ankit 16. Kumar (Nokia)" <ankit.16.kumar@...ia.com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] of: overlay: fix warning being reported as error in
 add_changeset_property

On 12/30/22 02:40, Ankit 16. Kumar (Nokia) wrote:
> 
> The print causes false reporting of the issue which actually is a warning

How did you select the commit in this Fixes tag?

> Fixes: 2fe0e8769df9 ("of: overlay: check prevents multiple fragments touching same property")
> 
> Signed-off-by: Ankit Kumar <ankit.16.kumar@...ia.com>
> ---
>  drivers/of/overlay.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/of/overlay.c b/drivers/of/overlay.c index ed4e6c144a68..0da39b8461e7 100644
> --- a/drivers/of/overlay.c
> +++ b/drivers/of/overlay.c
> @@ -358,7 +358,7 @@ static int add_changeset_property(struct overlay_changeset *ovcs,
>  	}
>  
>  	if (!of_node_check_flag(target->np, OF_OVERLAY))
> -		pr_err("WARNING: memory leak will occur if overlay removed, property: %pOF/%s\n",
> +		pr_warn("WARNING: memory leak will occur if overlay removed, 
> +property: %pOF/%s\n",
>  		       target->np, new_prop->name);
>  
>  	if (ret) {
> --
> 2.30.1
> 

NACK.  This patch is incorrect.  The reported memory leak is a bug, not a warning.

I'll write up some information about why the memory leak occurs, then reply to this
email with the additional info.

-Frank