Hi,

thank you for fixing this issue!

> +	if (data && (protocol == I2C_SMBUS_BLOCK_DATA ||
> +		     protocol == I2C_SMBUS_BLOCK_PROC_CALL ||
> +		     protocol == I2C_SMBUS_I2C_BLOCK_DATA) &&
> +	    data->block[0] > I2C_SMBUS_BLOCK_MAX)
> +		return -EINVAL;

Like with your other patch, we should also reject if the length is 0.

Happy hacking,

   Wolfram