diff --git a/target/linux/ramips/files-4.14/drivers/net/ethernet/mtk/mtk_eth_soc.c b/target/linux/ramips/files-4.14/drivers/net/ethernet/mtk/mtk_eth_soc.c
index d0d88b92c5..c806e289b5 100644
--- a/target/linux/ramips/files-4.14/drivers/net/ethernet/mtk/mtk_eth_soc.c
+++ b/target/linux/ramips/files-4.14/drivers/net/ethernet/mtk/mtk_eth_soc.c
@@ -1513,7 +1513,7 @@ static int fe_probe(struct platform_device *pdev)
 		soc->reg_table = fe_reg_table;
 
 	fe_base = devm_ioremap_resource(&pdev->dev, res);
-	if (!fe_base) {
+	if (IS_ERR(fe_base)) {
 		err = -EADDRNOTAVAIL;
 		goto err_out;
 	}