linux-kernel - Re: [PATCH v2 0/2] gpio: regression fixes

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Date:   Mon, 1 Mar 2021 19:38:32 +0100
From:   Bartosz Golaszewski <bgolaszewski@...libre.com>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     Johan Hovold <johan@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Saravana Kannan <saravanak@...gle.com>,
        linux-gpio <linux-gpio@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 0/2] gpio: regression fixes

On Mon, Mar 1, 2021 at 5:57 PM Andy Shevchenko
<andy.shevchenko@...il.com> wrote:
>
> On Mon, Mar 1, 2021 at 11:13 AM Bartosz Golaszewski
> <bgolaszewski@...libre.com> wrote:
> > On Mon, Mar 1, 2021 at 10:05 AM Johan Hovold <johan@...nel.org> wrote:
> > >
> > > Here's a fix for a regression in 5.12 due to the new stub-driver hack,
> > > and a fix for potential list corruption due to missing locking which has
> > > been there since the introduction of the character-device interface in
> > > 4.6.
> > >
> > > Johan
> > >
> > > Changes in v2
> > >  - drop the corresponding drv_set_drvdata() which is no longer needed
> > >    after patch 1/2
> > >  - add Saravanas's reviewed-by tag to patch 2/2
> > >
> > >
> > > Johan Hovold (2):
> > >   gpio: fix NULL-deref-on-deregistration regression
> > >   gpio: fix gpio-device list corruption
> > >
> > >  drivers/gpio/gpiolib.c | 7 +++++--
> > >  1 file changed, 5 insertions(+), 2 deletions(-)
>
> > Patches applied, thanks!
>
> Ooops, you are fast!

The regression broke my gpip-sim I'm working on right now so I tested it too.

Bartosz