From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932072AbaHNIu7 (ORCPT ); Thu, 14 Aug 2014 04:50:59 -0400 Received: from terminus.zytor.com ([198.137.202.10]:36617 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754687AbaHNIu5 (ORCPT ); Thu, 14 Aug 2014 04:50:57 -0400 Date: Thu, 14 Aug 2014 01:45:38 -0700 From: tip-bot for Namhyung Kim Message-ID: Cc: acme@redhat.com, linux-kernel@vger.kernel.org, paulus@samba.org, hpa@zytor.com, mingo@kernel.org, jolsa@kernel.org, a.p.zijlstra@chello.nl, minchan@kernel.org, namhyung.kim@lge.com, namhyung@kernel.org, jolsa@redhat.com, adrian.hunter@intel.com, dsahern@gmail.com, tglx@linutronix.de Reply-To: mingo@kernel.org, hpa@zytor.com, paulus@samba.org, linux-kernel@vger.kernel.org, acme@redhat.com, jolsa@kernel.org, minchan@kernel.org, a.p.zijlstra@chello.nl, namhyung.kim@lge.com, namhyung@kernel.org, jolsa@redhat.com, dsahern@gmail.com, adrian.hunter@intel.com, tglx@linutronix.de In-Reply-To: <1407825645-24586-2-git-send-email-namhyung@kernel.org> References: <1407825645-24586-2-git-send-email-namhyung@kernel.org> To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/core] perf script: Fix possible memory leaks Git-Commit-ID: 6cc870f09da4d50722bc1caa27cad51733ce36f6 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 6cc870f09da4d50722bc1caa27cad51733ce36f6 Gitweb: http://git.kernel.org/tip/6cc870f09da4d50722bc1caa27cad51733ce36f6 Author: Namhyung Kim AuthorDate: Tue, 12 Aug 2014 15:40:33 +0900 Committer: Arnaldo Carvalho de Melo CommitDate: Wed, 13 Aug 2014 16:29:43 -0300 perf script: Fix possible memory leaks Some paths in perf script don't call perf_session__delete() after creating a new session. Signed-off-by: Namhyung Kim Acked-by: Jiri Olsa Cc: Adrian Hunter Cc: David Ahern Cc: Ingo Molnar Cc: Jiri Olsa Cc: Minchan Kim Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1407825645-24586-2-git-send-email-namhyung@kernel.org [ Saved errno value before calling perror(), as pointed out by Adrian Hunter ] Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-script.c | 35 ++++++++++++++++++++++------------- 1 file changed, 22 insertions(+), 13 deletions(-) diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c index 868c17d..c84d723 100644 --- a/tools/perf/builtin-script.c +++ b/tools/perf/builtin-script.c @@ -1471,12 +1471,13 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused) bool show_full_info = false; bool header = false; bool header_only = false; + bool script_started = false; char *rec_script_path = NULL; char *rep_script_path = NULL; struct perf_session *session; char *script_path = NULL; const char **__argv; - int i, j, err; + int i, j, err = 0; struct perf_script script = { .tool = { .sample = process_sample_event, @@ -1730,14 +1731,15 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused) if (header || header_only) { perf_session__fprintf_info(session, stdout, show_full_info); if (header_only) - return 0; + goto out_delete; } script.session = session; if (cpu_list) { - if (perf_session__cpu_bitmap(session, cpu_list, cpu_bitmap)) - return -1; + err = perf_session__cpu_bitmap(session, cpu_list, cpu_bitmap); + if (err < 0) + goto out_delete; } if (!no_callchain) @@ -1752,53 +1754,60 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused) if (output_set_by_user()) { fprintf(stderr, "custom fields not supported for generated scripts"); - return -1; + err = -EINVAL; + goto out_delete; } input = open(file.path, O_RDONLY); /* input_name */ if (input < 0) { + err = -errno; perror("failed to open file"); - return -1; + goto out_delete; } err = fstat(input, &perf_stat); if (err < 0) { perror("failed to stat file"); - return -1; + goto out_delete; } if (!perf_stat.st_size) { fprintf(stderr, "zero-sized file, nothing to do!\n"); - return 0; + goto out_delete; } scripting_ops = script_spec__lookup(generate_script_lang); if (!scripting_ops) { fprintf(stderr, "invalid language specifier"); - return -1; + err = -ENOENT; + goto out_delete; } err = scripting_ops->generate_script(session->tevent.pevent, "perf-script"); - goto out; + goto out_delete; } if (script_name) { err = scripting_ops->start_script(script_name, argc, argv); if (err) - goto out; + goto out_delete; pr_debug("perf script started with script %s\n\n", script_name); + script_started = true; } err = perf_session__check_output_opt(session); if (err < 0) - goto out; + goto out_delete; err = __cmd_script(&script); +out_delete: perf_session__delete(session); - cleanup_scripting(); + + if (script_started) + cleanup_scripting(); out: return err; }