net: ethernet: altera: TSE: fix error return code in altera_tse_probe()

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: fef2998 ("net: altera: tse: convert to phylink")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Sun Ke <sunke32@huawei.com>
Link: https://lore.kernel.org/r/20220920020041.2685948-1-sunke32@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

drivers/net/ethernet/altera/altera_tse_main.c

@@ -1411,6 +1411,7 @@ static int altera_tse_probe(struct platform_device *pdev)
 				       priv->phy_iface, &alt_tse_phylink_ops);
 	if (IS_ERR(priv->phylink)) {
 		dev_err(&pdev->dev, "failed to create phylink\n");
+		ret = PTR_ERR(priv->phylink);
 		goto err_init_phy;
 	}