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=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=unavailable 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 D1ABBC43381 for ; Mon, 15 Mar 2021 13:55:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9D35D64EF8 for ; Mon, 15 Mar 2021 13:55:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231497AbhCONyu (ORCPT ); Mon, 15 Mar 2021 09:54:50 -0400 Received: from mail.kernel.org ([198.145.29.99]:55910 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230378AbhCONx2 (ORCPT ); Mon, 15 Mar 2021 09:53:28 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 50B6764EB6; Mon, 15 Mar 2021 13:53:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1615816407; bh=xPOyjQVC9zn/UwBkVcl/FOk/o6vGCPsyRe8EBtqcggY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=poi+l4yiWWPZjMDj3j7ON2Las43hmo/XzRRmb9ZUDRvBg70PkYLJHc5G1OH2Lu1UO mjHi9TFOl6S/Fi+68VLm7+3v8y1jT65Elb6cXMvh0T5N0KWBQsE9tObPRIfda89be/ hdXeMwDote+7mFbndf6LCjis3tahdGE5PQFJvq/s= From: gregkh@linuxfoundation.org To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Abhishek Sahu , Takashi Iwai Subject: [PATCH 4.4 26/75] ALSA: hda: Avoid spurious unsol event handling during S3/S4 Date: Mon, 15 Mar 2021 14:51:40 +0100 Message-Id: <20210315135209.110183575@linuxfoundation.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210315135208.252034256@linuxfoundation.org> References: <20210315135208.252034256@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Greg Kroah-Hartman From: Takashi Iwai commit 5ff9dde42e8c72ed8102eb8cb62e03f9dc2103ab upstream. When HD-audio bus receives unsolicited events during its system suspend/resume (S3 and S4) phase, the controller driver may still try to process events although the codec chips are already (or yet) powered down. This might screw up the codec communication, resulting in CORB/RIRB errors. Such events should be rather skipped, as the codec chip status such as the jack status will be fully refreshed at the system resume time. Since we're tracking the system suspend/resume state in codec power.power_state field, let's add the check in the common unsol event handler entry point to filter out such events. BugLink: https://bugzilla.suse.com/show_bug.cgi?id=1182377 Tested-by: Abhishek Sahu Cc: # 183ab39eb0ea: ALSA: hda: Initialize power_state Link: https://lore.kernel.org/r/20210310112809.9215-3-tiwai@suse.de Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- sound/pci/hda/hda_bind.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/sound/pci/hda/hda_bind.c +++ b/sound/pci/hda/hda_bind.c @@ -46,6 +46,10 @@ static void hda_codec_unsol_event(struct if (codec->bus->shutdown) return; + /* ignore unsol events during system suspend/resume */ + if (codec->core.dev.power.power_state.event != PM_EVENT_ON) + return; + if (codec->patch_ops.unsol_event) codec->patch_ops.unsol_event(codec, ev); }