Fix compiler warning by cast int to pointer
Fix compiler warning by cast int to pointer

mcaleavya/bcc,mcaleavya/bcc,iovisor/bcc,brendangregg/bcc,brendangregg/bcc,romain-intel/bcc,iovisor/bcc,mcaleavya/bcc,tuxology/bcc,romain-intel/bcc,tuxology/bcc,romain-intel/bcc,mcaleavya/bcc,iovisor/bcc,romain-intel/bcc,brendangregg/bcc,tuxology/bcc,iovisor/bcc,tuxology/bcc,romain-intel/bcc,tuxology/bcc,brendangregg/bcc,brendangregg/bcc,mcaleavya/bcc,iovisor/bcc