From patchwork Mon Jan 24 18:42:29 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 536368 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 39CB5C433F5 for ; Mon, 24 Jan 2022 19:02:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1343828AbiAXTB4 (ORCPT ); Mon, 24 Jan 2022 14:01:56 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45332 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345300AbiAXTAB (ORCPT ); Mon, 24 Jan 2022 14:00:01 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0FCBBC061776; Mon, 24 Jan 2022 10:56:57 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id A2A0661555; Mon, 24 Jan 2022 18:56:56 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 89B05C340E8; Mon, 24 Jan 2022 18:56:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1643050616; bh=yRZ5PLm8YrBcENjVOphL8zjDmRVYXJ/aiF4IzO9WfI8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YzU+piB0eZbtED4xYg5byd6VnSFEH9+zhoGjJj2pnIUqhcvMZhcCiBONkvsXBh4Eu +0999KEAv4QIuwuiIEqdplz6AfWQWmmenkllemvcR1WGt5EBLHZs+MNThbqfdkxbXR EIEUynKnsOCddTh0Pj4pH9EkBY9xvu/AXGh8U4kg= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Takashi Iwai , Sasha Levin Subject: [PATCH 4.9 059/157] ALSA: hda: Add missing rwsem around snd_ctl_remove() calls Date: Mon, 24 Jan 2022 19:42:29 +0100 Message-Id: <20220124183934.655747009@linuxfoundation.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220124183932.787526760@linuxfoundation.org> References: <20220124183932.787526760@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Takashi Iwai [ Upstream commit 80bd64af75b4bb11c0329bc66c35da2ddfb66d88 ] snd_ctl_remove() has to be called with card->controls_rwsem held (when called after the card instantiation). This patch add the missing rwsem calls around it. Fixes: d13bd412dce2 ("ALSA: hda - Manage kcontrol lists") Link: https://lore.kernel.org/r/20211116071314.15065-3-tiwai@suse.de Signed-off-by: Takashi Iwai Signed-off-by: Sasha Levin --- sound/pci/hda/hda_codec.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 4e67614f15f8e..8976da3e1e288 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -1608,8 +1608,11 @@ void snd_hda_ctls_clear(struct hda_codec *codec) { int i; struct hda_nid_item *items = codec->mixers.list; + + down_write(&codec->card->controls_rwsem); for (i = 0; i < codec->mixers.used; i++) snd_ctl_remove(codec->card, items[i].kctl); + up_write(&codec->card->controls_rwsem); snd_array_free(&codec->mixers); snd_array_free(&codec->nids); }