diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c
index 4eb8d372f619..44b78e979cdc 100644
--- a/drivers/tty/serial/max310x.c
+++ b/drivers/tty/serial/max310x.c
@@ -1656,6 +1656,8 @@ static int max310x_i2c_probe(struct i2c_client *client)
 		port_client = devm_i2c_new_dummy_device(&client->dev,
 							client->adapter,
 							port_addr);
+		if (IS_ERR(port_client))
+			return PTR_ERR(port_client);
 
 		regmaps[i] = devm_regmap_init_i2c(port_client, &regcfg_i2c);
 	}