unlock            681 core/gps.c             unlock(0);
unlock            982 core/gps.c             unlock(1);       
unlock           1266 core/gps.c             unlock(2) ;
unlock           1354 core/gps.c             unlock(3);
unlock           1461 core/gps.c         unlock(4);
unlock           1568 core/gps.c         unlock(5);
unlock           1601 core/gps.c         unlock(5);