From patchwork Tue Sep 29 10:58:01 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 290955 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2AF58C4727C for ; Tue, 29 Sep 2020 12:07:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C9BBF20684 for ; Tue, 29 Sep 2020 12:07:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1601381234; bh=0bEKGFe7oIvtAHae9iu607OloDUiTjaguDn3Gph6ZMU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=LfAG14amUx+scfEDfqSJSgh66BLkKh7Jtjo1nB5VuF5x5j8u9D5XnmyRnMf6YNXAe 99nW28QkJF/3PW3mxSnMaunGVpyoWAGulakbsUVbuLQ+oFCoFkRDfTsVqxa7D+evU2 jYEUlykk1MaVbsTxWt+APtC2aQOFaeHLXSzXHeN4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728652AbgI2MHN (ORCPT ); Tue, 29 Sep 2020 08:07:13 -0400 Received: from mail.kernel.org ([198.145.29.99]:58098 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730251AbgI2Lhg (ORCPT ); Tue, 29 Sep 2020 07:37:36 -0400 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 004D223B81; Tue, 29 Sep 2020 11:36:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1601379412; bh=0bEKGFe7oIvtAHae9iu607OloDUiTjaguDn3Gph6ZMU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qsrbNnuSQywiPyvk+wIwN8bK5dUFTiLuqE7uKPy03lNF/w9+Fa+lzCJ+mTbNFAWmL 7JZgNUYNdHtC8A/SlhlamgI3D2sMfhrjs2pqt9TKPVcxXVseJip/3V1V1vnqSCZA9k VPoWhlFhmrJXVyI68PqI0M101tyxGrREqQ/G3Itk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jiri Olsa , John Garry , Alexander Shishkin , Andi Kleen , James Clark , Joakim Zhang , Mark Rutland , Namhyung Kim , Peter Zijlstra , Will Deacon , linuxarm@huawei.com, Arnaldo Carvalho de Melo , Sasha Levin Subject: [PATCH 5.4 150/388] perf jevents: Fix leak of mapfile memory Date: Tue, 29 Sep 2020 12:58:01 +0200 Message-Id: <20200929110017.735155168@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200929110010.467764689@linuxfoundation.org> References: <20200929110010.467764689@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: John Garry [ Upstream commit 3f5777fbaf04c58d940526a22a2e0c813c837936 ] The memory for global pointer is never freed during normal program execution, so let's do that in the main function exit as a good programming practice. A stray blank line is also removed. Reported-by: Jiri Olsa Signed-off-by: John Garry Cc: Alexander Shishkin Cc: Andi Kleen Cc: James Clark Cc: Joakim Zhang Cc: Mark Rutland Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Will Deacon Cc: linuxarm@huawei.com Link: http://lore.kernel.org/lkml/1583406486-154841-2-git-send-email-john.garry@huawei.com Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Sasha Levin --- tools/perf/pmu-events/jevents.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/tools/perf/pmu-events/jevents.c b/tools/perf/pmu-events/jevents.c index d36ae65ae3330..f4a0d72246cb7 100644 --- a/tools/perf/pmu-events/jevents.c +++ b/tools/perf/pmu-events/jevents.c @@ -1068,10 +1068,9 @@ static int process_one_file(const char *fpath, const struct stat *sb, */ int main(int argc, char *argv[]) { - int rc; + int rc, ret = 0; int maxfds; char ldirname[PATH_MAX]; - const char *arch; const char *output_file; const char *start_dirname; @@ -1142,7 +1141,8 @@ int main(int argc, char *argv[]) /* Make build fail */ fclose(eventsfp); free_arch_std_events(); - return 1; + ret = 1; + goto out_free_mapfile; } else if (rc) { goto empty_map; } @@ -1160,14 +1160,17 @@ int main(int argc, char *argv[]) /* Make build fail */ fclose(eventsfp); free_arch_std_events(); - return 1; + ret = 1; } - return 0; + + goto out_free_mapfile; empty_map: fclose(eventsfp); create_empty_mapping(output_file); free_arch_std_events(); - return 0; +out_free_mapfile: + free(mapfile); + return ret; }