perf test: Fix memory leaks in parse-metric test

It didn't release resources when there's an error so the
test_recursion_fail() will leak some memory.

Fixes: 0a507af9c681a ("perf tests: Add parse metric test for ipc metric")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20200915031819.386559-7-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/tests/parse-metric.c b/tools/perf/tests/parse-metric.c
index 23db8ac..cd7331a 100644 (file)
--- a/tools/perf/tests/parse-metric.c
+++ b/tools/perf/tests/parse-metric.c
@@ -153,8 +153,10 @@ static int __compute_metric(const char *name, struct value *vals,
                return -ENOMEM;
 
        cpus = perf_cpu_map__new("0");
-       if (!cpus)
+       if (!cpus) {
+               evlist__delete(evlist);
                return -ENOMEM;
+       }
 
        perf_evlist__set_maps(&evlist->core, cpus, NULL);
 
@@ -163,10 +165,11 @@ static int __compute_metric(const char *name, struct value *vals,
                                             false, false,
                                             &metric_events);
        if (err)
-               return err;
+               goto out;
 
-       if (perf_evlist__alloc_stats(evlist, false))
-               return -1;
+       err = perf_evlist__alloc_stats(evlist, false);
+       if (err)
+               goto out;
 
        /* Load the runtime stats with given numbers for events. */
        runtime_stat__init(&st);
@@ -178,13 +181,14 @@ static int __compute_metric(const char *name, struct value *vals,
        if (name2 && ratio2)
                *ratio2 = compute_single(&metric_events, evlist, &st, name2);
 
+out:
        /* ... clenup. */
        metricgroup__rblist_exit(&metric_events);
        runtime_stat__exit(&st);
        perf_evlist__free_stats(evlist);
        perf_cpu_map__put(cpus);
        evlist__delete(evlist);
-       return 0;
+       return err;
 }
 
 static int compute_metric(const char *name, struct value *vals, double *ratio)