net: stmmac: honor error code from stmmac_dt_phy()

Honor error code from stmmac_dt_phy() instead of always
returning -ENODEV.

No functional change intended.
Signed-off-by: NNiklas Cassel <niklas.cassel@axis.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c

@@ -417,8 +417,9 @@ stmmac_probe_config_dt(struct platform_device *pdev, const char **mac)
 		dev_warn(&pdev->dev, "snps,phy-addr property is deprecated\n");
 
 	/* To Configure PHY by using all device-tree supported properties */
-	if (stmmac_dt_phy(plat, np, &pdev->dev))
-		return ERR_PTR(-ENODEV);
+	rc = stmmac_dt_phy(plat, np, &pdev->dev);
+	if (rc)
+		return ERR_PTR(rc);
 
 	of_property_read_u32(np, "tx-fifo-depth", &plat->tx_fifo_size);