8b7040d NSS: Fix the error handler in sss_mc_create_file

Authored and Committed by jhrozek 7 years ago
    NSS: Fix the error handler in sss_mc_create_file
    
    https://fedorahosted.org/sssd/ticket/1704
    
    The function is short enough so that we can simply stick with return and
    release resources before returning as appropriate.