* subversion/libsvn_subr/named_atomic.c
  (svn_atomic_namespace__create): Don't leave the synch infrastructure locked
                                  when there was an error.

Found by: ivan


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1617687 13f79535-47bb-0310-9956-ffa450edef68