linux-kernel - Re: [net-next PATCH v3 06/14] net: phy: marvell: Add software control of the LEDs

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Message-ID: <c493a204-045a-4ca1-8630-f05f8a289ed0@lunn.ch>
Date:   Wed, 15 Mar 2023 02:48:12 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Vladimir Oltean <olteanv@...il.com>
Cc:     Christian Marangi <ansuelsmth@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        Gregory Clement <gregory.clement@...tlin.com>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        John Crispin <john@...ozen.org>, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-arm-msm@...r.kernel.org, Lee Jones <lee@...nel.org>,
        linux-leds@...r.kernel.org
Subject: Re: [net-next PATCH v3 06/14] net: phy: marvell: Add software
 control of the LEDs

> > +	u16 reg;
> > +
> > +	reg = phy_read_paged(phydev, MII_MARVELL_LED_PAGE,
> > +			     MII_88E1318S_PHY_LED_FUNC);
> > +	if (reg < 0)
> > +		return reg;
> 
> "reg" is declared as unsigned, so it's surely positive.

Gerr. That is one of the most common errors in phylib. I should know
better :-(

Thanks
	Andrew