Simplify conditions and don't send ERROR chunks when not ready.
Simplify conditions and don't send ERROR chunks when not ready.

CoolmanCZ/usrsctp,sctplab/usrsctp,CoolmanCZ/usrsctp,CoolmanCZ/usrsctp,CoolmanCZ/usrsctp,sctplab/usrsctp,weinrank/usrsctp,weinrank/usrsctp,sctplab/usrsctp,weinrank/usrsctp