[RFC PATCH v3 09/14] perf metricgroup: free metric_events on error

From: Ian Rogers
Date: Fri May 08 2020 - 01:37:42 EST


Avoid a simple memory leak.

Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx>
---
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 4f7e36bc49d9..7e1725d61c39 100644
--- a/tools/perf/util/metricgroup.c
+++ b/tools/perf/util/metricgroup.c
@@ -186,6 +186,7 @@ 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; metric_events[i]; i++)
@@ -193,11 +194,13 @@ 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;
--
2.26.2.645.ge9eca65c58-goog