From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754732AbbAPVZF (ORCPT ); Fri, 16 Jan 2015 16:25:05 -0500 Received: from mail.kernel.org ([198.145.29.136]:54163 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756443AbbAPVXC (ORCPT ); Fri, 16 Jan 2015 16:23:02 -0500 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Namhyung Kim , David Ahern , Jiri Olsa , Peter Zijlstra , Arnaldo Carvalho de Melo Subject: [PATCH 03/10] perf machine: Fix __machine__findnew_thread() error path Date: Fri, 16 Jan 2015 18:22:35 -0300 Message-Id: <1421443362-10709-4-git-send-email-acme@kernel.org> X-Mailer: git-send-email 1.9.3 In-Reply-To: <1421443362-10709-1-git-send-email-acme@kernel.org> References: <1421443362-10709-1-git-send-email-acme@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Namhyung Kim When thread__init_map_groups() fails, a new thread should be removed from the rbtree since it's gonna be freed. Also update last match cache only if the function succeeded. Reported-by: David Ahern Signed-off-by: Namhyung Kim Acked-by: Jiri Olsa Cc: David Ahern Cc: Ingo Molnar Cc: Jiri Olsa Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1420763892-15535-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/machine.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index 94de3e48b490..1bca3a9f2b16 100644 --- a/tools/perf/util/machine.c +++ b/tools/perf/util/machine.c @@ -389,7 +389,6 @@ static struct thread *__machine__findnew_thread(struct machine *machine, if (th != NULL) { rb_link_node(&th->rb_node, parent, p); rb_insert_color(&th->rb_node, &machine->threads); - machine->last_match = th; /* * We have to initialize map_groups separately @@ -400,9 +399,12 @@ static struct thread *__machine__findnew_thread(struct machine *machine, * leader and that would screwed the rb tree. */ if (thread__init_map_groups(th, machine)) { + rb_erase(&th->rb_node, &machine->threads); thread__delete(th); return NULL; } + + machine->last_match = th; } return th; -- 1.9.3