From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752984AbbI1Ukf (ORCPT ); Mon, 28 Sep 2015 16:40:35 -0400 Received: from mx1.redhat.com ([209.132.183.28]:38276 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752246AbbI1Ukd (ORCPT ); Mon, 28 Sep 2015 16:40:33 -0400 From: Ulrich Obergfell To: linux-kernel@vger.kernel.org Cc: akpm@linux-foundation.org, dzickus@redhat.com, atomlin@redhat.com, uobergfe@redhat.com Subject: [PATCH 4/5] watchdog: implement error handling in lockup_detector_suspend() Date: Mon, 28 Sep 2015 22:44:11 +0200 Message-Id: <1443473052-3053-5-git-send-email-uobergfe@redhat.com> In-Reply-To: <1443473052-3053-1-git-send-email-uobergfe@redhat.com> References: <1443473052-3053-1-git-send-email-uobergfe@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org lockup_detector_suspend() now handles errors from watchdog_park_threads(). Signed-off-by: Ulrich Obergfell --- kernel/watchdog.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/kernel/watchdog.c b/kernel/watchdog.c index 457113c..3bc22a9 100644 --- a/kernel/watchdog.c +++ b/kernel/watchdog.c @@ -707,6 +707,11 @@ int lockup_detector_suspend(void) if (ret == 0) watchdog_suspended++; + else { + watchdog_disable_all_cpus(); + pr_err("Failed to suspend lockup detectors, disabled\n"); + watchdog_enabled = 0; + } mutex_unlock(&watchdog_proc_mutex); -- 1.7.11.7