diff options
| -rw-r--r-- | tools/perf/util/evlist.h | 5 | ||||
| -rw-r--r-- | tools/perf/util/sort.c | 2 |
2 files changed, 6 insertions, 1 deletions
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index 0843746bc389..bf2c4936e35f 100644 --- a/tools/perf/util/evlist.h +++ b/tools/perf/util/evlist.h @@ -265,6 +265,11 @@ bool perf_evlist__valid_read_format(struct perf_evlist *evlist); void perf_evlist__splice_list_tail(struct perf_evlist *evlist, struct list_head *list); +static inline bool perf_evlist__empty(struct perf_evlist *evlist) +{ + return list_empty(&evlist->entries); +} + static inline struct perf_evsel *perf_evlist__first(struct perf_evlist *evlist) { return list_entry(evlist->entries.next, struct perf_evsel, node); diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c index 8b327c955a4f..12359bd986db 100644 --- a/tools/perf/util/sort.c +++ b/tools/perf/util/sort.c @@ -2563,7 +2563,7 @@ static const char *get_default_sort_order(struct perf_evlist *evlist) BUG_ON(sort__mode >= ARRAY_SIZE(default_sort_orders)); - if (evlist == NULL) + if (evlist == NULL || perf_evlist__empty(evlist)) goto out_no_evlist; evlist__for_each_entry(evlist, evsel) { |