From: Namhyung Kim <[email protected]>
[ Upstream commit 4f57a1ed749a81ec553d89233cab53db9365e193 ]
I found some memory leaks while reading the metric code. Some are real
and others only occur in the error path. When it failed during metric
or event parsing, it should release all resources properly.
Fixes: b18f3e365019d ("perf stat: Support JSON metrics in perf stat")
Signed-off-by: Namhyung Kim <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
tools/perf/util/metricgroup.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
index 9e21aa767e417..344a75718afc3 100644
--- a/tools/perf/util/metricgroup.c
+++ b/tools/perf/util/metricgroup.c
@@ -443,6 +443,9 @@ void metricgroup__print(bool metrics, bool metricgroups,
char *filter,
continue;
strlist__add(me->metrics, s);
}
+
+ if (!raw)
+ free(s);
}
free(omg);
}
@@ -726,7 +729,7 @@ int metricgroup__parse_groups(const struct option *opt,
ret = metricgroup__add_metric_list(str, metric_no_group,
&extra_events, &group_list);
if (ret)
- return ret;
+ goto out;
pr_debug("adding %s\n", extra_events.buf);
bzero(&parse_error, sizeof(parse_error));
ret = parse_events(perf_evlist, extra_events.buf, &parse_error);
@@ -734,11 +737,11 @@ int metricgroup__parse_groups(const struct option *opt,
parse_events_print_error(&parse_error, extra_events.buf);
goto out;
}
- strbuf_release(&extra_events);
ret = metricgroup__setup_events(&group_list, metric_no_merge,
perf_evlist, metric_events);
out:
metricgroup__free_egroups(&group_list);
+ strbuf_release(&extra_events);
return ret;
}
--
2.25.1
