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Date:   Mon, 31 Aug 2020 16:08:47 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Marco Felsch <m.felsch@...gutronix.de>
Cc:     davem@...emloft.net, kuba@...nel.org, robh+dt@...nel.org,
        f.fainelli@...il.com, hkallweit1@...il.com, linux@...linux.org.uk,
        zhengdejin5@...il.com, richard.leitner@...data.com,
        netdev@...r.kernel.org, devicetree@...r.kernel.org,
        kernel@...gutronix.de
Subject: Re: [PATCH 4/5] net: phy: smsc: add phy refclk in support

> +	priv->refclk = devm_clk_get_optional(dev, NULL);
> +	if (IS_ERR(priv->refclk)) {
> +		if (PTR_ERR(priv->refclk) == -EPROBE_DEFER)
> +			return -EPROBE_DEFER;
> +
> +		/* Clocks are optional all errors should be ignored here */
> +		return 0;

Since you are calling devm_clk_get_optional() isn't an error a real
error, not that the clock is missing? It probably should be returned
as an error code.

   Andrew

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