net: phy: smsc: fix clk error handling

[ Upstream commit a18caa97b1bda0a3d126a7be165ddcfc56c2dde6 ]

Commit bedd8d78aba3 ("net: phy: smsc: LAN8710/20: add phy refclk in
support") added the phy clk support. The commit already checks if
clk_get_optional() throw an error but instead of returning the error it
ignores it.

Fixes: bedd8d78aba3 ("net: phy: smsc: LAN8710/20: add phy refclk in support")
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20210111085932.28680-1-m.felsch@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/phy/smsc.c b/drivers/net/phy/smsc.c
index 0fc39ac..10722fe 100644 (file)
--- a/drivers/net/phy/smsc.c
+++ b/drivers/net/phy/smsc.c
@@ -284,7 +284,8 @@ static int smsc_phy_probe(struct phy_device *phydev)
        /* Make clk optional to keep DTB backward compatibility. */
        priv->refclk = clk_get_optional(dev, NULL);
        if (IS_ERR(priv->refclk))
-               dev_err_probe(dev, PTR_ERR(priv->refclk), "Failed to request clock\n");
+               return dev_err_probe(dev, PTR_ERR(priv->refclk),
+                                    "Failed to request clock\n");
 
        ret = clk_prepare_enable(priv->refclk);
        if (ret)