Other changes in this ticket guarantee that the padata argument to
return callbacks is non-null; don't check for null in pkinit_srv.c.

https://github.com/krb5/krb5/commit/4c2630eb315e962261c4f02e629c18e288c69060
Commit By: hartmans
Revision: 23582
Changed Files:
U   trunk/src/plugins/preauth/pkinit/pkinit_srv.c