Description of problem:
The xendDomainCreateLinux  does two calls to 

    dom = virDomainLookupByName(conn, name);

Each call to virDomainLookupByName increments the reference count on the
virDomainPtr object. So, upon returning from virDomainCreateLinux, the caller
has a virDomainPtr object with a reference count of '2' instead of the expected
'1'. The result is the virDomainPtr object will never be freed

Version-Release number of selected component (if applicable):
libvirt-0.1.8

How reproducible:
Always

Steps to Reproduce:
1. Run a program which calls virDomainCreateLinux under GDB
2. Stop execution immediately after virDomainCreateLinux returns
3. Examine the reference count of the returned virDomainPtr object
  
Actual results:
Ref count of 2

Expected results:
Ref count of 1

Additional info: