Re: [PATCH v4 2/2] usb: typec: tps6598x: Export some power supply properties

From: Guido Günther
Date: Tue Dec 01 2020 - 08:57:20 EST


Hi Andy,
On Tue, Dec 01, 2020 at 03:52:40PM +0200, Andy Shevchenko wrote:
> On Tue, Dec 1, 2020 at 2:59 PM Guido Günther <agx@xxxxxxxxxxx> wrote:
> > This allows downstream supplies and userspace to detect
> > whether external power is supplied.
>
> ...
>
> > +static int devm_tps6598_psy_register(struct tps6598x *tps)
> > +{
> > + struct power_supply_config psy_cfg = {};
> > + const char *port_dev_name = dev_name(tps->dev);
>
> > + size_t psy_name_len = strlen(tps6598x_psy_name_prefix) +
> > + strlen(port_dev_name) + 1;
>
> I'm so sorry by not noticing this one...
>
> > + char *psy_name;
> > +
> > + psy_cfg.drv_data = tps;
> > + psy_cfg.fwnode = dev_fwnode(tps->dev);
> > + psy_name = devm_kzalloc(tps->dev, psy_name_len, GFP_KERNEL);
> > + if (!psy_name)
> > + return -ENOMEM;
> > +
> > + snprintf(psy_name, psy_name_len, "%s%s", tps6598x_psy_name_prefix,
> > + port_dev_name);
>
> ...followed by this.
>
> Please, use devm_kasprintf() instead.

Will do. I'll let the series sit for a couple of days before sending a
v5.
Cheers,
-- Guido

>
> --
> With Best Regards,
> Andy Shevchenko
>