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Date:   Thu, 7 May 2020 13:13:12 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Johan Hovold <johan@...nel.org>
Cc:     Naresh Kamboju <naresh.kamboju@...aro.org>,
        linux- stable <stable@...r.kernel.org>,
        Sasha Levin <sashal@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Vince Bridgers <vbridger@...nsource.altera.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Fugang Duan <fugang.duan@....com>,
        Pantelis Antoniou <pantelis.antoniou@...il.com>,
        Vitaly Bordug <vbordug@...mvista.com>,
        Claudiu Manoil <claudiu.manoil@...escale.com>,
        Li Yang <leoli@...escale.com>,
        Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
        Felix Fietkau <nbd@...nwrt.org>,
        John Crispin <blogic@...nwrt.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Sergei Shtylyov <sergei.shtylyov@...entembedded.com>,
        Lars Persson <lars.persson@...s.com>,
        Mugunthan V N <mugunthanvnm@...com>,
        Grygorii Strashko <grygorii.strashko@...com>,
        Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...oirfairelinux.com>,
        Netdev <netdev@...r.kernel.org>,
        nios2-dev@...ts.rocketboards.org,
        open list <linux-kernel@...r.kernel.org>,
        linuxppc-dev@...ts.ozlabs.org, linux-mediatek@...ts.infradead.org,
        linux-renesas-soc@...r.kernel.org, linux-omap@...r.kernel.org,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>, lkft-triage@...ts.linaro.org
Subject: Re: [PATCH net 11/16] net: ethernet: marvell: mvneta: fix fixed-link
 phydev leaks

On Thu, May 07, 2020 at 08:47:34AM +0200, Greg Kroah-Hartman wrote:
> On Thu, May 07, 2020 at 08:44:12AM +0200, Johan Hovold wrote:
> > On Thu, May 07, 2020 at 12:27:53AM +0530, Naresh Kamboju wrote:
> > > On Tue, 29 Nov 2016 at 00:00, Johan Hovold <johan@...nel.org> wrote:
> > > >
> > > > Make sure to deregister and free any fixed-link PHY registered using
> > > > of_phy_register_fixed_link() on probe errors and on driver unbind.
> > > >
> > > > Fixes: 83895bedeee6 ("net: mvneta: add support for fixed links")
> > > > Signed-off-by: Johan Hovold <johan@...nel.org>
> > > > ---
> > > >  drivers/net/ethernet/marvell/mvneta.c | 5 +++++
> > > >  1 file changed, 5 insertions(+)
> > > >
> > > > diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
> > > > index 0c0a45af950f..707bc4680b9b 100644
> > > > --- a/drivers/net/ethernet/marvell/mvneta.c
> > > > +++ b/drivers/net/ethernet/marvell/mvneta.c
> > > > @@ -4191,6 +4191,8 @@ static int mvneta_probe(struct platform_device *pdev)
> > > >         clk_disable_unprepare(pp->clk);
> > > >  err_put_phy_node:
> > > >         of_node_put(phy_node);
> > > > +       if (of_phy_is_fixed_link(dn))
> > > > +               of_phy_deregister_fixed_link(dn);
> > > 
> > > While building kernel Image for arm architecture on stable-rc 4.4 branch
> > > the following build error found.
> > > 
> > > drivers/net/ethernet/marvell/mvneta.c:3442:3: error: implicit
> > > declaration of function 'of_phy_deregister_fixed_link'; did you mean
> > > 'of_phy_register_fixed_link'? [-Werror=implicit-function-declaration]
> > > |    of_phy_deregister_fixed_link(dn);
> > > |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > > |    of_phy_register_fixed_link
> > > 
> > > ref:
> > > https://gitlab.com/Linaro/lkft/kernel-runs/-/jobs/541374729
> > 
> > Greg, 3f65047c853a ("of_mdio: add helper to deregister fixed-link
> > PHYs") needs to be backported as well for these.
> > 
> > Original series can be found here:
> > 
> > 	https://lkml.kernel.org/r/1480357509-28074-1-git-send-email-johan@kernel.org
> 
> Ah, thanks for that, I thought I dropped all of the ones that caused
> build errors, but missed the above one.  I'll go take the whole series
> instead.

This should now all be fixed up, thanks.

greg k-h

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