cleanup hidden vars, protect against null dereference, use switch_assert macro.

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@6656 d0543943-73ff-0310-b7d9-9358b9ac24b2

cleanup hidden vars, protect against null dereference, use switch_assert macro.
git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@6656 d0543943-73ff-0310-b7d9-9358b9ac24b2
d78adf73 · Michael Jerris · 598b4838 · d78adf73
--- a/src/mod/applications/mod_conference/mod_conference.c
+++ b/src/mod/applications/mod_conference/mod_conference.c