linux-kernel - Re: [net-next PATCH 2/2] net: ethernet: stmmac: reset force speed bit for ipq806x

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Message-ID: <62a865a4.1c69fb81.81506.21c5@mx.google.com>
Date:   Tue, 14 Jun 2022 12:40:35 +0200
From:   Ansuel Smith <ansuelsmth@...il.com>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Jose Abreu <joabreu@...opsys.com>,
        "David S. Miller" <davem@...emloft.net>,
        Paolo Abeni <pabeni@...hat.com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        netdev@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Mark Mentovai <mark@...ienet.com>
Subject: Re: [net-next PATCH 2/2] net: ethernet: stmmac: reset force speed
 bit for ipq806x

On Mon, Jun 13, 2022 at 10:49:17PM -0700, Jakub Kicinski wrote:
> On Thu,  9 Jun 2022 02:28:31 +0200 Christian 'Ansuel' Marangi wrote:
> > +	dn = of_get_child_by_name(pdev->dev.of_node, "fixed-link");
> > +	ret = of_property_read_u32(dn, "speed", &link_speed);
> > +	if (ret) {
> > +		dev_err(dev, "found fixed-link node with no speed");
> > +		return ret;
> 
> Doesn't this return potentially leak the reference on dn?
> You move the of_node_put() right before the if (ret) {
>

Totally right. Will fix in v2.

> > +	}
> > +
> > +	of_node_put(dn);

-- 
	Ansuel