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-rw-r--r--tools/perf/tests/sw-clock.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/tools/perf/tests/sw-clock.c b/tools/perf/tests/sw-clock.c
index 73c5c37..ed77772 100644
--- a/tools/perf/tests/sw-clock.c
+++ b/tools/perf/tests/sw-clock.c
@@ -57,7 +57,11 @@ static int __test__sw_clock_freq(enum perf_sw_ids clock_id)
goto out_delete_maps;
}
- perf_evlist__open(evlist);
+ if (perf_evlist__open(evlist)) {
+ err = -errno;
+ pr_debug("Couldn't open evlist: %s\n", strerror(errno));
+ goto out_delete_maps;
+ }
err = perf_evlist__mmap(evlist, 128, true);
if (err < 0) {