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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 11FDBC43217 for ; Mon, 24 Jan 2022 19:50:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1357304AbiAXTtr (ORCPT ); Mon, 24 Jan 2022 14:49:47 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54242 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1354666AbiAXTg7 (ORCPT ); Mon, 24 Jan 2022 14:36:59 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0AD51C0612FC; Mon, 24 Jan 2022 11:17:08 -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 ams.source.kernel.org (Postfix) with ESMTPS id A5202B81232; Mon, 24 Jan 2022 19:17:07 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B8EB5C340E5; Mon, 24 Jan 2022 19:17:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1643051826; bh=/9vfmZF8Y2rYM7HSv/gz+9NfEvjBBAacOA4J8BTCFkk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=dtEU5N7C5lcC9UbdGKaeVz2NfuFDk5fdcSg+MKqj+S+YZwrVq9aF7TenSK+uP4mDR FY/xZqqSQN2IDO9IQFC5/A0ZR1XI9g4G+1WRUGvd1JlrUaFs6vWAqSFXEIo/Wz2K8G T1B8G4F7bgUml0S5x5SOpfkioGHr0VRIkLMWjZEI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Takashi Iwai , Sasha Levin Subject: [PATCH 4.19 099/239] ALSA: jack: Add missing rwsem around snd_ctl_remove() calls Date: Mon, 24 Jan 2022 19:42:17 +0100 Message-Id: <20220124183946.253930476@linuxfoundation.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220124183943.102762895@linuxfoundation.org> References: <20220124183943.102762895@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: stable@vger.kernel.org From: Takashi Iwai [ Upstream commit 06764dc931848c3a9bc01a63bbf76a605408bb54 ] 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: 9058cbe1eed2 ("ALSA: jack: implement kctl creating for jack devices") Link: https://lore.kernel.org/r/20211116071314.15065-1-tiwai@suse.de Signed-off-by: Takashi Iwai Signed-off-by: Sasha Levin --- sound/core/jack.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sound/core/jack.c b/sound/core/jack.c index 847a8f3fd06ea..acb531749efb0 100644 --- a/sound/core/jack.c +++ b/sound/core/jack.c @@ -68,10 +68,13 @@ static int snd_jack_dev_free(struct snd_device *device) struct snd_card *card = device->card; struct snd_jack_kctl *jack_kctl, *tmp_jack_kctl; + down_write(&card->controls_rwsem); list_for_each_entry_safe(jack_kctl, tmp_jack_kctl, &jack->kctl_list, list) { list_del_init(&jack_kctl->list); snd_ctl_remove(card, jack_kctl->kctl); } + up_write(&card->controls_rwsem); + if (jack->private_free) jack->private_free(jack); -- 2.34.1