fix memory error, thanks valgrind!
fix memory error, thanks valgrind!

dijkstracula/libinjection,ppliu1979/libinjection,dijkstracula/libinjection,dijkstracula/libinjection,ppliu1979/libinjection,ppliu1979/libinjection,fengjian/libinjection,dijkstracula/libinjection,fengjian/libinjection,ppliu1979/libinjection,dijkstracula/libinjection,fengjian/libinjection,ppliu1979/libinjection,fengjian/libinjection,fengjian/libinjection,dijkstracula/libinjection,ppliu1979/libinjection,fengjian/libinjection,fengjian/libinjection