diff options
| author | Sage Weil <sage@inktank.com> | 2013-08-15 14:11:45 -0400 |
|---|---|---|
| committer | Sage Weil <sage@inktank.com> | 2013-08-15 14:11:45 -0400 |
| commit | ee3e542fec6e69bc9fb668698889a37d93950ddf (patch) | |
| tree | e74ee766a4764769ef1d3d45d266b4dea64101d3 /tools/perf/util/stat.c | |
| parent | fe2a801b50c0bb8039d627e5ae1fec249d10ff39 (diff) | |
| parent | f1d6e17f540af37bb1891480143669ba7636c4cf (diff) | |
Merge remote-tracking branch 'linus/master' into testing
Diffstat (limited to 'tools/perf/util/stat.c')
| -rw-r--r-- | tools/perf/util/stat.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c index 23742126f47c..7c59c28afcc5 100644 --- a/tools/perf/util/stat.c +++ b/tools/perf/util/stat.c | |||
| @@ -37,7 +37,7 @@ double stddev_stats(struct stats *stats) | |||
| 37 | { | 37 | { |
| 38 | double variance, variance_mean; | 38 | double variance, variance_mean; |
| 39 | 39 | ||
| 40 | if (!stats->n) | 40 | if (stats->n < 2) |
| 41 | return 0.0; | 41 | return 0.0; |
| 42 | 42 | ||
| 43 | variance = stats->M2 / (stats->n - 1); | 43 | variance = stats->M2 / (stats->n - 1); |