1.1 --- a/Hardware/Mainboard/Mainboard.cs	Thu Aug 12 20:53:27 2010 +0000
     1.2 +++ b/Hardware/Mainboard/Mainboard.cs	Sun Aug 15 14:46:58 2010 +0000
     1.3 @@ -53,8 +53,7 @@
     1.4        this.smbios = new SMBIOS();
     1.5       
     1.6        if (smbios.Board != null) {
     1.7 -        if (smbios.Board.ProductName != null
     1.8 -          && smbios.Board.ProductName != "") {
     1.9 +        if (!string.IsNullOrEmpty(smbios.Board.ProductName)) {
    1.10            if (smbios.Board.Manufacturer == Manufacturer.Unknown)
    1.11              this.name = smbios.Board.ProductName;
    1.12            else
    1.13 @@ -131,8 +130,9 @@
    1.14      #pragma warning restore 67
    1.15  
    1.16      public void Accept(IVisitor visitor) {
    1.17 -      if (visitor != null)
    1.18 -        visitor.VisitHardware(this);
    1.19 +      if (visitor == null)
    1.20 +        throw new ArgumentNullException("visitor");
    1.21 +      visitor.VisitHardware(this);
    1.22      }
    1.23  
    1.24      public void Traverse(IVisitor visitor) {