From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 68CDFC432C3 for ; Thu, 14 Nov 2019 18:18:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4A6062072C for ; Thu, 14 Nov 2019 18:18:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727419AbfKNSSA (ORCPT ); Thu, 14 Nov 2019 13:18:00 -0500 Received: from mga03.intel.com ([134.134.136.65]:36355 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727378AbfKNSR4 (ORCPT ); Thu, 14 Nov 2019 13:17:56 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga007.jf.intel.com ([10.7.209.58]) by orsmga103.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 14 Nov 2019 10:17:56 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.68,304,1569308400"; d="scan'208";a="195123533" Received: from chiahuil-mobl.amr.corp.intel.com (HELO pbossart-mobl3.amr.corp.intel.com) ([10.255.228.77]) by orsmga007.jf.intel.com with ESMTP; 14 Nov 2019 10:17:54 -0800 From: Pierre-Louis Bossart To: alsa-devel@alsa-project.org Cc: linux-kernel@vger.kernel.org, tiwai@suse.de, broonie@kernel.org, vkoul@kernel.org, gregkh@linuxfoundation.org, jank@cadence.com, srinivas.kandagatla@linaro.org, slawomir.blauciak@intel.com, Bard liao , Rander Wang , Ranjani Sridharan , Pierre-Louis Bossart , Sanyog Kale Subject: [PATCH v3 15/22] soundwire: intel: disable pm_runtime when removing a master Date: Thu, 14 Nov 2019 12:16:55 -0600 Message-Id: <20191114181702.22254-16-pierre-louis.bossart@linux.intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191114181702.22254-1-pierre-louis.bossart@linux.intel.com> References: <20191114181702.22254-1-pierre-louis.bossart@linux.intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Prevent race conditions between remove and resume by disabling pm_runtime. Note that this only takes care of pm_runtime at the Master level, the same precautions are needed when removing a Slave device. Signed-off-by: Pierre-Louis Bossart --- drivers/soundwire/intel.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c index 69b0c8f65ad8..460e2d8cf80d 100644 --- a/drivers/soundwire/intel.c +++ b/drivers/soundwire/intel.c @@ -1275,6 +1275,8 @@ static int intel_master_remove(struct sdw_master_device *md) { struct sdw_intel *sdw; + pm_runtime_disable(&md->dev); + sdw = md->pdata; if (!sdw->cdns.bus.prop.hw_disabled) { -- 2.20.1