linux-kernel - Re: [PATCH] regmap: debugfs: Duplicate name string if delaying debugfs init

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Date:   Wed, 16 Sep 2020 17:06:01 +0000
From:   Charles Keepax <ckeepax@...nsource.cirrus.com>
To:     Mark Brown <broonie@...nel.org>
CC:     <linux-kernel@...r.kernel.org>, <patches@...nsource.cirrus.com>
Subject: Re: [PATCH] regmap: debugfs: Duplicate name string if delaying
 debugfs init

On Wed, Sep 16, 2020 at 05:14:18PM +0100, Mark Brown wrote:
> On Wed, Sep 16, 2020 at 04:44:33PM +0100, Charles Keepax wrote:
> 
> > -		node->name = name;
> > +		node->name = kstrdup(name, GFP_KERNEL);
> > +		if (!node->name) {
> 
> Two things here - one is that this should be kstrdup_const(), the other
> is that we already took a copy of the name in __regmap_init() so the
> thing to do here is to change the regmap_debugfs_init() call there to
> use the copy we just made rather than the copy in the config.

Thanks Mark, I will have a look and update.

Thanks,
Charles