linux-kernel - [tip:perf/urgent] perf trace: Drop thread refcount in trace__event

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Message-ID: <tip-dkxsb8cwg87rmkrzrbns1o4z@git.kernel.org>
Date:   Fri, 26 Oct 2018 00:33:23 -0700
From:   tip-bot for Arnaldo Carvalho de Melo <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     tglx@...utronix.de, acme@...hat.com, jolsa@...nel.org,
        wangnan0@...wei.com, adrian.hunter@...el.com, namhyung@...nel.org,
        mingo@...nel.org, linux-kernel@...r.kernel.org, dsahern@...il.com,
        hpa@...or.com
Subject: [tip:perf/urgent] perf trace: Drop thread refcount in
 trace__event_handler()

Commit-ID:  a937c6658b8e77e1f65cde2be9970811752121bb
Gitweb:     https://git.kernel.org/tip/a937c6658b8e77e1f65cde2be9970811752121bb
Author:     Arnaldo Carvalho de Melo <acme@...hat.com>
AuthorDate: Sat, 20 Oct 2018 09:27:52 -0300
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Mon, 22 Oct 2018 12:37:52 -0300

perf trace: Drop thread refcount in trace__event_handler()

We must pair:

   thread = machine__findnew_thread();

with thread__put(thread). Fix it.

Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: David Ahern <dsahern@...il.com>
Cc: Jiri Olsa <jolsa@...nel.org>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Wang Nan <wangnan0@...wei.com>
Fixes: c4191e55b874 ("perf trace: Show comm and tid for tracepoint events")
Link: https://lkml.kernel.org/n/tip-dkxsb8cwg87rmkrzrbns1o4z@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/builtin-trace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 77b8748ad5ed..589e0412652a 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -2152,8 +2152,8 @@ newline:
 		trace__fprintf_callchain(trace, sample);
 	else if (callchain_ret < 0)
 		pr_err("Problem processing %s callchain, skipping...\n", perf_evsel__name(evsel));
-	thread__put(thread);
 out:
+	thread__put(thread);
 	return 0;
 }