linux-kernel - [tip:perf/core] perf tools: Use perf_event_terms_

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Date:	Mon, 15 Feb 2016 23:54:35 -0800
From:	tip-bot for Arnaldo Carvalho de Melo <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	ast@...nel.org, hpa@...or.com, wangnan0@...wei.com,
	masami.hiramatsu.pt@...achi.com, lizefan@...wei.com,
	acme@...hat.com, namhyung@...nel.org, mingo@...nel.org,
	linux-kernel@...r.kernel.org, hekuang@...wei.com, jolsa@...nel.org,
	tglx@...utronix.de
Subject: [tip:perf/core] perf tools: Use perf_event_terms__purge()
  for non-malloced terms

Commit-ID:  682dc24c2a0f13d5a16ac8f4303671eb8f11519f
Gitweb:     http://git.kernel.org/tip/682dc24c2a0f13d5a16ac8f4303671eb8f11519f
Author:     Arnaldo Carvalho de Melo <acme@...hat.com>
AuthorDate: Fri, 12 Feb 2016 16:48:00 -0300
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Fri, 12 Feb 2016 16:53:22 -0300

perf tools: Use perf_event_terms__purge() for non-malloced terms

In these two cases, a 'perf test' entry and in the PMU code the
list_head is on the stack, so we can't use perf_event__free_terms()
(soon to be renamed to perf_event_terms__delete()), because it will
free the list_head as well.

Acked-by: Jiri Olsa <jolsa@...nel.org>
Cc: Alexei Starovoitov <ast@...nel.org>
Cc: He Kuang <hekuang@...wei.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Wang Nan <wangnan0@...wei.com>
Cc: Zefan Li <lizefan@...wei.com>
Cc: pi3orama@....com
Link: http://lkml.kernel.org/n/tip-i956ryjhz97gnnqe8iqe7m7s@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/tests/parse-events.c | 2 +-
 tools/perf/util/pmu.c           | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c
index abe8849..6648274 100644
--- a/tools/perf/tests/parse-events.c
+++ b/tools/perf/tests/parse-events.c
@@ -1666,7 +1666,7 @@ static int test_term(struct terms_test *t)
 	}
 
 	ret = t->check(&terms);
-	parse_events__free_terms(&terms);
+	parse_events_terms__purge(&terms);
 
 	return ret;
 }
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 41a9c87..cf59fba 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -354,7 +354,7 @@ static int pmu_alias_terms(struct perf_pmu_alias *alias,
 	list_for_each_entry(term, &alias->terms, list) {
 		ret = parse_events_term__clone(&cloned, term);
 		if (ret) {
-			parse_events__free_terms(&list);
+			parse_events_terms__purge(&list);
 			return ret;
 		}
 		list_add_tail(&cloned->list, &list);