From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C9553C129; Mon, 1 Apr 2024 16:28:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711988934; cv=none; b=RKzkBP4WGoW4mI4iqpZrMpFzqM98gWVNA6fO+s4+P3WzX/NTatt1U2nYiaCdY/eVVnKySuE/SbxXtDmSCoHg09vJ5802r4bzgV2jns1W+3NYTy9dGRH5xgBjlsrrszyDyk0eYgPZvuPNMM5A1OWSYa+YsqpdNxNq6LffYqnvZ74= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711988934; c=relaxed/simple; bh=GHTD6mv2zqBX16VZD2qTqNr7Kq1ZdzjP3kS66esVt8A=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=fp666tgcTiWUFy49n7ijUi+axVM0dIynGOmCMJa38RdqWhpNddFWQTIsD6e+YgbxupD510ntlq5Iro7nmZC42ASsG3ZWTJ7McHMDZrDNZyKEq77Lt2XIYgqPZqG8Dp0if5O5Eels3WdpBPo76BTqG4ruVt8WnrM6YgQUyTI9SKY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=MeB1hHLq; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="MeB1hHLq" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 51C6AC43394; Mon, 1 Apr 2024 16:28:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1711988934; bh=GHTD6mv2zqBX16VZD2qTqNr7Kq1ZdzjP3kS66esVt8A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MeB1hHLqlV24UscvpfVVjs9lrIv//cGfZmy8Q7WdUfKlaxdTJrCegREeh7oZF4prF oTDyHZn86wGwGsD/w47RbqYWd5oDA6I9I0Hbf+/LpOIs7rfpUobJCKOtUjH7z0R1g/ ZW23eGCbwHg9DYZbx+lY+1xqS4Yw3tdGt5Cyx19I= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Gergo Koteles , Takashi Iwai Subject: [PATCH 6.7 333/432] ALSA: hda/tas2781: add locks to kcontrols Date: Mon, 1 Apr 2024 17:45:20 +0200 Message-ID: <20240401152603.144345797@linuxfoundation.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240401152553.125349965@linuxfoundation.org> References: <20240401152553.125349965@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.7-stable review patch. If anyone has any objections, please let me know. ------------------ From: Gergo Koteles commit 15bc3066d2378eef1b45254be9df23b0dd7f1667 upstream. The rcabin.profile_cfg_id, cur_prog, cur_conf, force_fwload_status variables are acccessible from multiple threads and therefore require locking. Fixes: 5be27f1e3ec9 ("ALSA: hda/tas2781: Add tas2781 HDA driver") CC: stable@vger.kernel.org Signed-off-by: Gergo Koteles Message-ID: Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- sound/pci/hda/tas2781_hda_i2c.c | 50 ++++++++++++++++++++++++++++++++++++++-- 1 file changed, 48 insertions(+), 2 deletions(-) --- a/sound/pci/hda/tas2781_hda_i2c.c +++ b/sound/pci/hda/tas2781_hda_i2c.c @@ -179,8 +179,12 @@ static int tasdevice_get_profile_id(stru { struct tasdevice_priv *tas_priv = snd_kcontrol_chip(kcontrol); + mutex_lock(&tas_priv->codec_lock); + ucontrol->value.integer.value[0] = tas_priv->rcabin.profile_cfg_id; + mutex_unlock(&tas_priv->codec_lock); + return 0; } @@ -194,11 +198,15 @@ static int tasdevice_set_profile_id(stru val = clamp(nr_profile, 0, max); + mutex_lock(&tas_priv->codec_lock); + if (tas_priv->rcabin.profile_cfg_id != val) { tas_priv->rcabin.profile_cfg_id = val; ret = 1; } + mutex_unlock(&tas_priv->codec_lock); + return ret; } @@ -235,8 +243,12 @@ static int tasdevice_program_get(struct { struct tasdevice_priv *tas_priv = snd_kcontrol_chip(kcontrol); + mutex_lock(&tas_priv->codec_lock); + ucontrol->value.integer.value[0] = tas_priv->cur_prog; + mutex_unlock(&tas_priv->codec_lock); + return 0; } @@ -251,11 +263,15 @@ static int tasdevice_program_put(struct val = clamp(nr_program, 0, max); + mutex_lock(&tas_priv->codec_lock); + if (tas_priv->cur_prog != val) { tas_priv->cur_prog = val; ret = 1; } + mutex_unlock(&tas_priv->codec_lock); + return ret; } @@ -264,8 +280,12 @@ static int tasdevice_config_get(struct s { struct tasdevice_priv *tas_priv = snd_kcontrol_chip(kcontrol); + mutex_lock(&tas_priv->codec_lock); + ucontrol->value.integer.value[0] = tas_priv->cur_conf; + mutex_unlock(&tas_priv->codec_lock); + return 0; } @@ -280,11 +300,15 @@ static int tasdevice_config_put(struct s val = clamp(nr_config, 0, max); + mutex_lock(&tas_priv->codec_lock); + if (tas_priv->cur_conf != val) { tas_priv->cur_conf = val; ret = 1; } + mutex_unlock(&tas_priv->codec_lock); + return ret; } @@ -294,8 +318,15 @@ static int tas2781_amp_getvol(struct snd struct tasdevice_priv *tas_priv = snd_kcontrol_chip(kcontrol); struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value; + int ret; - return tasdevice_amp_getvol(tas_priv, ucontrol, mc); + mutex_lock(&tas_priv->codec_lock); + + ret = tasdevice_amp_getvol(tas_priv, ucontrol, mc); + + mutex_unlock(&tas_priv->codec_lock); + + return ret; } static int tas2781_amp_putvol(struct snd_kcontrol *kcontrol, @@ -304,9 +335,16 @@ static int tas2781_amp_putvol(struct snd struct tasdevice_priv *tas_priv = snd_kcontrol_chip(kcontrol); struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value; + int ret; + + mutex_lock(&tas_priv->codec_lock); /* The check of the given value is in tasdevice_amp_putvol. */ - return tasdevice_amp_putvol(tas_priv, ucontrol, mc); + ret = tasdevice_amp_putvol(tas_priv, ucontrol, mc); + + mutex_unlock(&tas_priv->codec_lock); + + return ret; } static int tas2781_force_fwload_get(struct snd_kcontrol *kcontrol, @@ -314,10 +352,14 @@ static int tas2781_force_fwload_get(stru { struct tasdevice_priv *tas_priv = snd_kcontrol_chip(kcontrol); + mutex_lock(&tas_priv->codec_lock); + ucontrol->value.integer.value[0] = (int)tas_priv->force_fwload_status; dev_dbg(tas_priv->dev, "%s : Force FWload %s\n", __func__, tas_priv->force_fwload_status ? "ON" : "OFF"); + mutex_unlock(&tas_priv->codec_lock); + return 0; } @@ -327,6 +369,8 @@ static int tas2781_force_fwload_put(stru struct tasdevice_priv *tas_priv = snd_kcontrol_chip(kcontrol); bool change, val = (bool)ucontrol->value.integer.value[0]; + mutex_lock(&tas_priv->codec_lock); + if (tas_priv->force_fwload_status == val) change = false; else { @@ -336,6 +380,8 @@ static int tas2781_force_fwload_put(stru dev_dbg(tas_priv->dev, "%s : Force FWload %s\n", __func__, tas_priv->force_fwload_status ? "ON" : "OFF"); + mutex_unlock(&tas_priv->codec_lock); + return change; }