or vm_cache_ref couldn't be created, instead of cleaning up and returning
an appropriate error.
* vm_cache_ref_create() no returns a status_t instead of the vm_cache_ref
(as that's part of the vm_cache anyway).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16602 a95241bf-73f2-0310-859d-f6bbb57e9c96