234 	struct bpf_prog *old_prog = NULL;  in __cgroup_bpf_attach()  local
291 			old_prog = pl->prog;  in __cgroup_bpf_attach()
309 	if (old_prog) {  in __cgroup_bpf_attach()
310 		bpf_prog_put(old_prog);  in __cgroup_bpf_attach()
318 	pl->prog = old_prog;  in __cgroup_bpf_attach()
343 	struct bpf_prog *old_prog = NULL;  in __cgroup_bpf_detach()  local
364 			old_prog = prog;  in __cgroup_bpf_detach()
371 		if (!old_prog)  in __cgroup_bpf_detach()
378 		old_prog = pl->prog;  in __cgroup_bpf_detach()
395 	bpf_prog_put(old_prog);  in __cgroup_bpf_detach()
401 	pl->prog = old_prog;  in __cgroup_bpf_detach()