linux-kernel - [tip:perf/core] perf data: Show error message when conversion failed

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Message-ID: <tip-xvhr1vf7zav9kkeo9w1hv4uk@git.kernel.org>
Date:	Tue, 5 May 2015 19:55:37 -0700
From:	tip-bot for He Kuang <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	bigeasy@...utronix.de, wangnan0@...wei.com, tzanussi@...il.com,
	fweisbec@...il.com, paulus@...ba.org, mingo@...nel.org,
	a.p.zijlstra@...llo.nl, jolsa@...nel.org, hekuang@...wei.com,
	jgalar@...icios.com, hpa@...or.com, tglx@...utronix.de,
	dsahern@...il.com, acme@...hat.com, linux-kernel@...r.kernel.org,
	namhyung@...nel.org
Subject: [tip:perf/core] perf data:
  Show error message when conversion failed

Commit-ID:  c21410554ee1a8e12fbc99f578d720b641cd1c74
Gitweb:     http://git.kernel.org/tip/c21410554ee1a8e12fbc99f578d720b641cd1c74
Author:     He Kuang <hekuang@...wei.com>
AuthorDate: Sat, 18 Apr 2015 17:50:14 +0200
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Wed, 29 Apr 2015 10:37:45 -0300

perf data: Show error message when conversion failed

Show message when errors occurred during conversion setup and conversion
process.

Before this patch:
  $ ./perf data convert --to-ctf=ctf
  $ echo $?
  255

After this patch:
  $ ./perf data convert --to-ctf=ctf
  Error during conversion setup.

Signed-off-by: He Kuang <hekuang@...wei.com>
Cc: David Ahern <dsahern@...il.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Jeremie Galarneau <jgalar@...icios.com>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc: Tom Zanussi <tzanussi@...il.com>
Cc: Wang Nan <wangnan0@...wei.com>
Link: http://lkml.kernel.org/n/tip-xvhr1vf7zav9kkeo9w1hv4uk@git.kernel.org
Link: http://lkml.kernel.org/r/1429372220-6406-2-git-send-email-jolsa@kernel.org
Signed-off-by: Jiri Olsa <jolsa@...nel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/util/data-convert-bt.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/data-convert-bt.c b/tools/perf/util/data-convert-bt.c
index dd17c9a..db4f709 100644
--- a/tools/perf/util/data-convert-bt.c
+++ b/tools/perf/util/data-convert-bt.c
@@ -837,6 +837,8 @@ int bt_convert__perf2ctf(const char *input, const char *path, bool force)
 	err = perf_session__process_events(session);
 	if (!err)
 		err = bt_ctf_stream_flush(cw->stream);
+	else
+		pr_err("Error during conversion.\n");
 
 	fprintf(stderr,
 		"[ perf data convert: Converted '%s' into CTF data '%s' ]\n",
@@ -847,11 +849,15 @@ int bt_convert__perf2ctf(const char *input, const char *path, bool force)
 		(double) c.events_size / 1024.0 / 1024.0,
 		c.events_count);
 
-	/* its all good */
-free_session:
 	perf_session__delete(session);
+	ctf_writer__cleanup(cw);
 
+	return err;
+
+free_session:
+	perf_session__delete(session);
 free_writer:
 	ctf_writer__cleanup(cw);
+	pr_err("Error during conversion setup.\n");
 	return err;
 }
--
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