netdev - Re: [RFC] wwan: add a new WWAN subsystem

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Date:   Tue, 25 Feb 2020 20:40:12 +0100
From:   Johannes Berg <johannes@...solutions.net>
To:     David Miller <davem@...emloft.net>
Cc:     netdev@...r.kernel.org, linux-wireless@...r.kernel.org,
        elder@...aro.org, m.chetan.kumar@...el.com, dcbw@...hat.com,
        bjorn.andersson@...aro.org
Subject: Re: [RFC] wwan: add a new WWAN subsystem

On Tue, 2020-02-25 at 11:00 -0800, David Miller wrote:
> From: Johannes Berg <johannes@...solutions.net>
> Date: Tue, 25 Feb 2020 11:00:53 +0100
> 
> > +static struct wwan_device *wwan_create(struct device *dev)
> > +{
> > +     struct wwan_device *wwan = kzalloc(sizeof(*wwan), GFP_KERNEL);
> > +     u32 id = ++wwan_id_counter;
> > +     int err;
> > +
> > +     lockdep_assert_held(&wwan_mtx);
> > +
> > +     if (WARN_ON(!id))
> > +             return ERR_PTR(-ENOSPC);
> 
> This potentially leaks 'wwan'.

Eagle eyes ... thanks! :)

I suppose this will be totally different if I can integrate with the
component device stuff somehow, will see.

johannes