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Date:   Wed, 5 May 2021 02:26:54 +0200
From:   Andrew Lunn <andrew@lunn.ch>
To:     Ansuel Smith <ansuelsmth@gmail.com>
Cc:     Florian Fainelli <f.fainelli@gmail.com>,
        Vivien Didelot <vivien.didelot@gmail.com>,
        Vladimir Oltean <olteanv@gmail.com>,
        "David S. Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>,
        Russell King <linux@armlinux.org.uk>, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH net-next v3 04/20] net: dsa: qca8k: handle
 qca8k_set_page errors
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References: <20210504222915.17206-1-ansuelsmth@gmail.com>
 <20210504222915.17206-4-ansuelsmth@gmail.com>
 <YJHmAxsyh08CnPHA@lunn.ch>
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> > @@ -161,14 +169,19 @@ static void
> >  qca8k_write(struct qca8k_priv *priv, u32 reg, u32 val)
> >  {
> >  	u16 r1, r2, page;
> > +	int ret;
> >  
> >  	qca8k_split_addr(reg, &r1, &r2, &page);
> >  
> >  	mutex_lock_nested(&priv->bus->mdio_lock, MDIO_MUTEX_NESTED);
> >  
> > -	qca8k_set_page(priv->bus, page);
> > +	ret = qca8k_set_page(priv->bus, page);
> > +	if (ret < 0)
> > +		goto exit;
> > +
> >  	qca8k_mii_write32(priv->bus, 0x10 | r2, r1, val);
> >  
> > +exit:
> >  	mutex_unlock(&priv->bus->mdio_lock);
> 
> Maybe make this function also return the error? 

Ah, sorry, a later patch does exactly that.

    Andrew