net: stmmac: dwmac-rk: fix error path in rk_gmac_probe

[ Upstream commit 9de9aa48 ]

Make sure we clean up devicetree related configuration
also when clock init fails.

Fixes: fecd4d7e ("net: stmmac: dwmac-rk: Add integrated PHY support")
Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c

@@ -1420,7 +1420,7 @@ static int rk_gmac_probe(struct platform_device *pdev)
 
 	ret = rk_gmac_clk_init(plat_dat);
 	if (ret)
-		return ret;
+		goto err_remove_config_dt;
 
 	ret = rk_gmac_powerup(plat_dat->bsp_priv);
 	if (ret)