[PATCH 1/4] perf metrictroup: Fix memory leak of metric_events

[Wei Li]

From: Hongbo Yao <yaohon...@huawei.com>

Fix memory leak of metric_events in function metricgroup__setup_events()

Signed-off-by: Hongbo Yao <yaohon...@huawei.com>
---
 tools/perf/util/metricgroup.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
index 926449a7cdbf..69bf0f4d646e 100644
--- a/tools/perf/util/metricgroup.c
+++ b/tools/perf/util/metricgroup.c
@@ -184,6 +184,7 @@ static int metricgroup__setup_events(struct list_head 
*groups,
                if (!evsel) {
                        pr_debug("Cannot resolve %s: %s\n",
                                        eg->metric_name, eg->metric_expr);
+                       free(metric_events);
                        continue;
                }
                for (i = 0; i < eg->idnum; i++)
@@ -191,11 +192,13 @@ static int metricgroup__setup_events(struct list_head 
*groups,
                me = metricgroup__lookup(metric_events_list, evsel, true);
                if (!me) {
                        ret = -ENOMEM;
+                       free(metric_events);
                        break;
                }
                expr = malloc(sizeof(struct metric_expr));
                if (!expr) {
                        ret = -ENOMEM;
+                       free(metric_events);
                        break;
                }
                expr->metric_expr = eg->metric_expr;
-- 
2.17.1