The code is return PTR_ERR(NULL) which is zero or success.  We should
return -ENOMEM instead.
Fixes: 94abdad6974a5 ("net: ethernet: dwmac: add ethernet glue logic for NXP imx8 chip")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 
        dwmac = devm_kzalloc(&pdev->dev, sizeof(*dwmac), GFP_KERNEL);
        if (!dwmac)
-               return PTR_ERR(dwmac);
+               return -ENOMEM;
 
        plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac);
        if (IS_ERR(plat_dat))