Messages in this thread | | | From | Ian Rogers <> | Date | Thu, 21 May 2020 09:10:55 -0700 | Subject | Re: [PATCH 1/4] perf metrictroup: Fix memory leak of metric_events |
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On Thu, May 21, 2020 at 8:54 AM Arnaldo Carvalho de Melo <acme@kernel.org> wrote: > > Em Thu, May 21, 2020 at 09:32:15PM +0800, Wei Li escreveu: > > From: Hongbo Yao <yaohongbo@huawei.com> > > > > Fix memory leak of metric_events in function metricgroup__setup_events() > > The leak is there but this code has changed a lot recently, please take > a look at my perf/core branch and keep Ian Rogers in the loop, > > - Arnaldo
Thanks, I'd posted the same change here: https://lore.kernel.org/lkml/20200508053629.210324-10-irogers@google.com/ but it looks like it was mislaid. Arnaldo, I can re-post that patch or Acked-by this patch. I'm easy either way.
Thanks, Ian
> > Signed-off-by: Hongbo Yao <yaohongbo@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 > > > > -- > > - Arnaldo
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