Possibility of memory leaks in this code block

I have a tool using a similar code block as follows.

private void createDiscussions()
{                        
   SPWeb newCommunitySite = null;

   try
   {    

     using (SPSite site = new SPSite(siteURL))
     {
      .
      .
      .
      newCommunitySite = site.OpenWeb();    
      .
      .
      .
     }
      newCommunitySite.Dispose();
   }
   catch()
   {
    .
    .
    .
   }
   finally
   {
    newCommunitySite.Dispose();
   }
}

Can this code cause memory leaks ?

Although the code looks nicely wrapped in the Using and try-catch blocks, I have the doubt because the SPWeb object was declared outside of Using and try-catch blocks. Will that be disposed properly(without causing leaks) in all scenarios ?