fix warning about ‘myprefix’ may be used uninitialized
fix warning about ‘myprefix’ may be used uninitialized

devzero2000/RPM5,devzero2000/RPM5,devzero2000/RPM5,devzero2000/RPM5,devzero2000/RPM5,devzero2000/RPM5,devzero2000/RPM5