2232 	int old_errno;  in evsel__detect_missing_pmu_features()  local
2273 	int old_errno;  in evsel__detect_missing_brstack_features()  local
2315 	int old_errno = errno;  in evsel__probe_aux_action()  local
2378 	int old_errno;  in evsel__detect_missing_features()  local
2575 	int pid = -1, err, old_errno;  in evsel__open_cpu()  local