[tip:perf/urgent] perf trace: Drop thread refcount in trace__event_handler()

[tip-bot for Arnaldo Carvalho de Melo]

Commit-ID:  a937c6658b8e77e1f65cde2be9970811752121bb
Gitweb:     https://git.kernel.org/tip/a937c6658b8e77e1f65cde2be9970811752121bb
Author:     Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Sat, 20 Oct 2018 09:27:52 -0300
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
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@xxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Wang Nan <wangnan0@xxxxxxxxxx>
Fixes: c4191e55b874 ("perf trace: Show comm and tid for tracepoint events")
Link: https://lkml.kernel.org/n/tip-dkxsb8cwg87rmkrzrbns1o4z@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 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;
 }