How to convert a do-while loop into Linq

Question

I have the following code which calculates a given number of days in the past. I would like to know how to convert it into Linq.
public static List<DateTime> GetPreviousDates(int count, DateTime startDate, int interval)
{
List<DateTime> dates = new List<DateTime>();
int counter = 1;
do
{
dates.Add(startDate.AddDays(-(interval * counter)));
counter++;
count--;
} while (count != 0);

            return dates;
        }

Answer 1

Check a solution:

public static List<DateTime> GetPreviousDates( int count, DateTime startDate, int interval )
{
    return Enumerable.Range( 1, count ).Select( c => startDate.AddDays( -c * interval ) ).ToList( );
}

However, the original loop probably works differently and incorrectly when count is zero.