From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AB8JxZovNwjxvgdz366C6b0Bmx6QpIv+yo/Kx2gBoA8B4DvFG7QTnZXPqV1wglReP6DUbJyT6N9H ARC-Seal: i=1; a=rsa-sha256; t=1525767220; cv=none; d=google.com; s=arc-20160816; b=cKTLBb+uwtMcoS9rsJFimE5WfZ8MsGZI6OaanG140p6gvjILnPE1+gCv1YqLU231xb sSkdwJm07OFh9LhxmN6DGgv0G8FZ+bcylxgcOOYM96iP3K66M82l+Utsmu0jjyqC3cwR plsEAXJKcs3qDaF8aXG0XNC2hCOOmXArWJLWrK1x8qJqFRPdOZLICMG7cSNqkGd3IJYo ukTYVoRU/Ez1jmAsytvdnpo9QkDQwDnd2qN+IgXp2BOdgcQGApZxLJmLIdV8kXC7aHcZ AjouQBozqhmrkIWgtfT5A8FPxAxppAnjTxxhqYE6x6gT7Qjl5CWQouXewx2Br8YCPQg4 pKMg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=mime-version:user-agent:references:in-reply-to:message-id:date :subject:cc:to:from:dkim-signature:arc-authentication-results; bh=l1as4msNPO1VE0PLp8NDpQIr8lbVrL/XmiKV6SlxRdw=; b=jd2GHjYnBHQQahOxMPqCASmHDy9EoZvUZUVD6A9Q5Luu9czFMl69+60RLwNdumpuUu aVuskqW1wGVL5OS+zJ+kDXWkKO1L+kmOd/k58DSktPGrvCIW5eVgcmM217QSLyc8k5o3 MVaBfqmmEv/B+gzyFwHbakt4674Uy9BFHGW+m5eRpoY78iAQRHhj0HuHUQQ2u/lEIuDu EHElahq4z4+aqJL7sHZJpKOY8VDWg8G1PDPLvUfctO2ZA5+ATz+5/b90pnu30wOwr8cX OSLj+jJD4D3UbNapFbZjVlk9B69vJNoe0D3XjwulXobbyt42WtM+EsVRhjztoRvyr8J1 gnRA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=2X/rVw4D; spf=pass (google.com: domain of srs0=4in3=h3=linuxfoundation.org=gregkh@kernel.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=SRS0=4In3=H3=linuxfoundation.org=gregkh@kernel.org Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=2X/rVw4D; spf=pass (google.com: domain of srs0=4in3=h3=linuxfoundation.org=gregkh@kernel.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=SRS0=4In3=H3=linuxfoundation.org=gregkh@kernel.org From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, "Peter Zijlstra (Intel)" , Thomas Gleixner , Diego Viola , "Rafael J. Wysocki" , len.brown@intel.com, rjw@rjwysocki.net, rui.zhang@intel.com Subject: [PATCH 4.16 50/52] clocksource: Initialize cs->wd_list Date: Tue, 8 May 2018 10:10:48 +0200 Message-Id: <20180508073935.198182778@linuxfoundation.org> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180508073928.058320984@linuxfoundation.org> References: <20180508073928.058320984@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-LABELS: =?utf-8?b?IlxcU2VudCI=?= X-GMAIL-THRID: =?utf-8?q?1599882888335587122?= X-GMAIL-MSGID: =?utf-8?q?1599882888335587122?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 4.16-stable review patch. If anyone has any objections, please let me know. ------------------ From: Peter Zijlstra commit 5b9e886a4af97574ca3ce1147f35545da0e7afc7 upstream. A number of places relies on list_empty(&cs->wd_list), however the list_head does not get initialized. Do so upon registration, such that thereafter it is possible to rely on list_empty() correctly reflecting the list membership status. Signed-off-by: Peter Zijlstra (Intel) Signed-off-by: Thomas Gleixner Tested-by: Diego Viola Reviewed-by: Rafael J. Wysocki Cc: stable@vger.kernel.org Cc: len.brown@intel.com Cc: rjw@rjwysocki.net Cc: rui.zhang@intel.com Link: https://lkml.kernel.org/r/20180430100344.472662715@infradead.org Signed-off-by: Greg Kroah-Hartman --- kernel/time/clocksource.c | 2 ++ 1 file changed, 2 insertions(+) --- a/kernel/time/clocksource.c +++ b/kernel/time/clocksource.c @@ -332,6 +332,8 @@ static void clocksource_resume_watchdog( static void clocksource_enqueue_watchdog(struct clocksource *cs) { + INIT_LIST_HEAD(&cs->wd_list); + if (cs->flags & CLOCK_SOURCE_MUST_VERIFY) { /* cs is a clocksource to be watched. */ list_add(&cs->wd_list, &watchdog_list);