From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754825Ab3LPP2Y (ORCPT ); Mon, 16 Dec 2013 10:28:24 -0500 Received: from terminus.zytor.com ([198.137.202.10]:47668 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754489Ab3LPP2U (ORCPT ); Mon, 16 Dec 2013 10:28:20 -0500 Date: Mon, 16 Dec 2013 07:28:01 -0800 From: tip-bot for Namhyung Kim Message-ID: Cc: acme@redhat.com, linux-kernel@vger.kernel.org, hpa@zytor.com, mingo@kernel.org, a.p.zijlstra@chello.nl, namhyung.kim@lge.com, namhyung@kernel.org, jolsa@redhat.com, fweisbec@gmail.com, rostedt@goodmis.org, tglx@linutronix.de Reply-To: mingo@kernel.org, hpa@zytor.com, linux-kernel@vger.kernel.org, acme@redhat.com, a.p.zijlstra@chello.nl, namhyung.kim@lge.com, namhyung@kernel.org, jolsa@redhat.com, fweisbec@gmail.com, rostedt@goodmis.org, tglx@linutronix.de In-Reply-To: <1386833777-3790-3-git-send-email-namhyung@kernel.org> References: <1386833777-3790-3-git-send-email-namhyung@kernel.org> To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/core] tools lib traceevent: Get rid of die in add_filter_type() Git-Commit-ID: ef3072cd1d5c2ea229f7abf8d6475e0c200eeb71 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 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.1 (terminus.zytor.com [127.0.0.1]); Mon, 16 Dec 2013 07:28:07 -0800 (PST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: ef3072cd1d5c2ea229f7abf8d6475e0c200eeb71 Gitweb: http://git.kernel.org/tip/ef3072cd1d5c2ea229f7abf8d6475e0c200eeb71 Author: Namhyung Kim AuthorDate: Thu, 12 Dec 2013 16:36:05 +0900 Committer: Arnaldo Carvalho de Melo CommitDate: Fri, 13 Dec 2013 10:30:21 -0300 tools lib traceevent: Get rid of die in add_filter_type() The realloc() should check return value and not to overwrite previous pointer in case of error. Signed-off-by: Namhyung Kim Reviewed-by: Steven Rostedt Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Jiri Olsa Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Steven Rostedt Link: http://lkml.kernel.org/r/1386833777-3790-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/lib/traceevent/parse-filter.c | 21 ++++++++++++++++----- 1 file changed, 16 insertions(+), 5 deletions(-) diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c index d4b0bac..767de4f 100644 --- a/tools/lib/traceevent/parse-filter.c +++ b/tools/lib/traceevent/parse-filter.c @@ -161,11 +161,13 @@ add_filter_type(struct event_filter *filter, int id) if (filter_type) return filter_type; - filter->event_filters = realloc(filter->event_filters, - sizeof(*filter->event_filters) * - (filter->filters + 1)); - if (!filter->event_filters) - die("Could not allocate filter"); + filter_type = realloc(filter->event_filters, + sizeof(*filter->event_filters) * + (filter->filters + 1)); + if (!filter_type) + return NULL; + + filter->event_filters = filter_type; for (i = 0; i < filter->filters; i++) { if (filter->event_filters[i].event_id > id) @@ -1180,6 +1182,12 @@ static int filter_event(struct event_filter *filter, } filter_type = add_filter_type(filter, event->id); + if (filter_type == NULL) { + show_error(error_str, "failed to add a new filter: %s", + filter_str ? filter_str : "true"); + return -1; + } + if (filter_type->filter) free_arg(filter_type->filter); filter_type->filter = arg; @@ -1417,6 +1425,9 @@ static int copy_filter_type(struct event_filter *filter, arg->boolean.value = 0; filter_type = add_filter_type(filter, event->id); + if (filter_type == NULL) + return -1; + filter_type->filter = arg; free(str);