PAPI_create_eventset was not checking for EventSet != PAPI_NULL as the documentation states
PAPI_create_eventset was not checking for EventSet != PAPI_NULL
as the documentation states

arm-hpc/papi,pyrovski/papi,arm-hpc/papi,arm-hpc/papi,arm-hpc/papi,pyrovski/papi,arm-hpc/papi,arm-hpc/papi,arm-hpc/papi,pyrovski/papi,pyrovski/papi,pyrovski/papi,pyrovski/papi,pyrovski/papi,pyrovski/papi