pull up r23713 from trunk

pull up r23713 from trunk

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 r23713 | hartmans | 2010-02-09 14:15:12 -0500 (Tue, 09 Feb 2010) | 10 lines

 subject: krb5int_fast_free_state segfaults if state is null
 ticket: 6657
 target_version: 1.8
 tags: pullup

 krb5int_fast_free_state fails if state is null.  INstead it should
 simply return Reorganization of the get_init_creds logic has created
 situations where the init_creds loop can fail between the time when
 the context is initialized and the fast state is initialized.

ticket: 6657
version_fixed: 1.8
status: resolved

git-svn-id: svn://anonsvn.mit.edu/krb5/branches/krb5-1-8@23719 dc483132-0cff-0310-8789-dd5450dbe970