From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030350AbbEFDUt (ORCPT ); Tue, 5 May 2015 23:20:49 -0400 Received: from terminus.zytor.com ([198.137.202.10]:36678 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030313AbbEFDUp (ORCPT ); Tue, 5 May 2015 23:20:45 -0400 Date: Tue, 5 May 2015 20:20:31 -0700 From: tip-bot for Namhyung Kim Message-ID: Cc: jolsa@kernel.org, a.p.zijlstra@chello.nl, hpa@zytor.com, linux-kernel@vger.kernel.org, dsahern@gmail.com, mingo@kernel.org, acme@redhat.com, namhyung@kernel.org, tglx@linutronix.de Reply-To: a.p.zijlstra@chello.nl, jolsa@kernel.org, linux-kernel@vger.kernel.org, dsahern@gmail.com, mingo@kernel.org, hpa@zytor.com, tglx@linutronix.de, acme@redhat.com, namhyung@kernel.org In-Reply-To: <1429687101-4360-4-git-send-email-namhyung@kernel.org> References: <1429687101-4360-4-git-send-email-namhyung@kernel.org> To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/core] perf hists browser: Fix possible memory leak Git-Commit-ID: f2b487db45f2aa203892384f6a08f0a761edad5d 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: f2b487db45f2aa203892384f6a08f0a761edad5d Gitweb: http://git.kernel.org/tip/f2b487db45f2aa203892384f6a08f0a761edad5d Author: Namhyung Kim AuthorDate: Wed, 22 Apr 2015 16:18:14 +0900 Committer: Arnaldo Carvalho de Melo CommitDate: Tue, 5 May 2015 18:13:13 -0300 perf hists browser: Fix possible memory leak The options array saves strings for each popup menu item. The number of items can be vary according to the currently selected item. So it can leak some memory if it's exited from a small item. Fix it by freeing all items when loop terminates. Signed-off-by: Namhyung Kim Acked-by: Jiri Olsa Cc: David Ahern Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1429687101-4360-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/ui/browsers/hists.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c index 995b7a8..0972d47 100644 --- a/tools/perf/ui/browsers/hists.c +++ b/tools/perf/ui/browsers/hists.c @@ -1424,7 +1424,8 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, struct hist_browser *browser = hist_browser__new(hists); struct branch_info *bi; struct pstack *fstack; - char *options[16]; +#define MAX_OPTIONS 16 + char *options[MAX_OPTIONS]; int nr_options = 0; int key = -1; char buf[64]; @@ -1691,7 +1692,8 @@ skip_annotation: "Switch to another data file in PWD") > 0) switch_data = nr_options++; add_exit_option: - options[nr_options++] = (char *)"Exit"; + if (asprintf(&options[nr_options], "Exit") > 0) + nr_options++; retry_popup_menu: choice = ui__popup_menu(nr_options, options); @@ -1812,7 +1814,7 @@ out_free_stack: pstack__delete(fstack); out: hist_browser__delete(browser); - free_popup_options(options, nr_options - 1); + free_popup_options(options, MAX_OPTIONS); return key; }