fcc_generate_new destroys locked mutex on error

fcc_generate_new destroys locked mutex on error

pull up r22200 from trunk

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 r22200 | ghudson | 2009-04-13 15:29:14 -0400 (Mon, 13 Apr 2009) | 3 lines
 Changed paths:
    M /trunk/src/lib/krb5/ccache/cc_file.c

 krb5_fcc_generate_new was destroying a locked mutex in the err_out
 label, which is used for I/O failures.  Unlock the mutex first.

ticket: 6469
tags: pullup
target_version: 1.7
version_fixed: 1.7

git-svn-id: svn://anonsvn.mit.edu/krb5/branches/krb5-1-7@22259 dc483132-0cff-0310-8789-dd5450dbe970