[PATCH v1] perf metrics: Fix segv with --for-each-cgroup

[Ian Rogers]

Ensure the metric threshold is copied correctly or else a use of
uninitialized memory happens.

Fixes: d0a3052f6fae ("perf metric: Compute and print threshold values")

Reported-by: Namhyung Kim <namhyung@xxxxxxxxxx>
Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx>
---
 tools/perf/util/metricgroup.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
index 4b9a16291b96..c566c6859302 100644
--- a/tools/perf/util/metricgroup.c
+++ b/tools/perf/util/metricgroup.c
@@ -1730,6 +1730,7 @@ int metricgroup__copy_metric_events(struct evlist *evlist, struct cgroup *cgrp,
 				return -ENOMEM;
 
 			new_expr->metric_expr = old_expr->metric_expr;
+			new_expr->metric_threshold = old_expr->metric_threshold;
 			new_expr->metric_name = strdup(old_expr->metric_name);
 			if (!new_expr->metric_name)
 				return -ENOMEM;
-- 
2.40.1.521.gf1e218fcd8-goog