[PATCH v2 3/3] net: stmmac: dwmac-nuvoton: Add dwmac support for MA35 family

[Andrew Lunn]

> +	if (of_property_read_u32(dev->of_node, "tx-internal-delay-ps", &arg)) {
> +		tx_delay = 0; /* Default value is 0 */
> +	} else {
> +		if (arg > 0 && arg <= 2000) {
> +			tx_delay = (arg == 2000) ? 0xF : (arg / PATHDLY_DEC);
> +			dev_dbg(dev, "Set Tx path delay to 0x%x\n", tx_delay);
> +		} else {
> +			tx_delay = 0;
> +			dev_err(dev, "Invalid Tx path delay argument. Setting to default.\n");
> +		}
> +	}

The device tree binding says that only [0, 2000] are valid. You should
enforce this here, return -EINVAL of any other value.

	Andrew