The metric_event_delete() missed to free expr->metric_events and it
should free an expr when metric_refs allocation failed.

Cc: Kajol Jain <[email protected]>
Cc: John Garry <[email protected]>
Cc: Ian Rogers <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Fixes: 4ea2896715e67 ("perf metric: Collect referenced metrics in struct 
metric_expr")
Signed-off-by: Namhyung Kim <[email protected]>
---
 tools/perf/util/metricgroup.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
index 90d14c63babb..53747df601fa 100644
--- a/tools/perf/util/metricgroup.c
+++ b/tools/perf/util/metricgroup.c
@@ -84,6 +84,7 @@ static void metric_event_delete(struct rblist *rblist 
__maybe_unused,
 
        list_for_each_entry_safe(expr, tmp, &me->head, nd) {
                free(expr->metric_refs);
+               free(expr->metric_events);
                free(expr);
        }
 
@@ -315,6 +316,7 @@ static int metricgroup__setup_events(struct list_head 
*groups,
                        if (!metric_refs) {
                                ret = -ENOMEM;
                                free(metric_events);
+                               free(expr);
                                break;
                        }
 
-- 
2.28.0.618.gf4bc123cb7-goog

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