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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 16C5BC4451C for ; Tue, 21 Jul 2026 10:27:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=73JLQAmWuZSnNO0q42K5V2Btd42o1yjgi7/OGpCGXNY=; b=Hm8PAvYaH4ryN9+WRXRHswNVIL OuiOYfoOcfHRFicAJrwtOGMOPfS1jft0YczXhytgWFfZrBbWh7P+9FOdEiMZqL+J7eeZpk11qbTD5 4BYNvCctDa2RwZccbPi+/TBmMiJLUP0Ej2jLB0vA3NJRdaPqL++JMWIg3uf+9uUoLCIlSiLoZI2SJ iYVl58zZVrTOrQFHXrKmVa0zirlvaYwRapFDm8kLAWfj5nQDaOKN/AwhYHDAOD4kixDJyDbvcB+bi 7uEsSI2USiTK+tyGxOxmhRgELTpQLiiXcAJpY4oJY/3gRnfpIlYgGuMCV83PX0hWne6lrbAPSVvnz 9oQB1+oQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wm7hQ-000000098uR-3k35; Tue, 21 Jul 2026 10:27:44 +0000 Received: from mail-pl1-x634.google.com ([2607:f8b0:4864:20::634]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wm7hE-000000098gL-480Q for linux-mediatek@lists.infradead.org; Tue, 21 Jul 2026 10:27:35 +0000 Received: by mail-pl1-x634.google.com with SMTP id d9443c01a7336-2ce87c7e3bbso125343265ad.1 for ; Tue, 21 Jul 2026 03:27:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1784629652; x=1785234452; darn=lists.infradead.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to:content-type; bh=73JLQAmWuZSnNO0q42K5V2Btd42o1yjgi7/OGpCGXNY=; b=WG975TKQMDGBepoIwUlxKQsnJ2tVBfBczfMldQSgm8W4A4ZpC568muNSQHgALFU7D2 VszYNzTjQmzSoUUxSd4pXLfjY9PS877E4RK/T0MBfI1Evh+7rVyd6lUOuNdWUnVzQ8C+ OQEVSMOA7nL01++hl+WWccWMTgmwWVcUPi6EReD/dR5lLPhtcp99AH5XE5ZRdmJmXj7x 8OYZpNQoqbnCxgoJ2/3UQqz/C00IrqyaK/ik9dRfVSMV5FM+i+EFcc8kg+19K2Qic0ER jrtfd069Z6utxZ/Zxcdy4SOL5SOI5Qub54H/Y82PfKz1sruUBcKPH6yQBD+2MPVAE8Z1 7X/g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1784629652; x=1785234452; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to:content-type; bh=73JLQAmWuZSnNO0q42K5V2Btd42o1yjgi7/OGpCGXNY=; b=MZbd19Re4ufbmm666b5rTSLA8EoDsPNlBwfqKhQrwOuIYhVJfgWOOFXIMWp13I69Yg UKOu45yRAPTnFYkxcAwP2qnvA2SCGdbUmXUbId3dnDZ8gnuzK8dZFGl40JNysvIOjx7J zNX47lZnkbJ9N/CO9RXGByDUdf1krQnI8qP5d8+tGl0TvveZJkGLewB88WJaoHROxwBu r9+KV+EOFqLYtYI6svuFF/A+i52qGqaQAECbkTDgX7P+KmyPYyasHnVw+YNSNDAad5Ax m5nYEp0PXymQXoJ6mdIIPsI99qK/ePZAz2xUAKu98tbSyNO/Pf1ASoCjJTanXcQOE/Xr oPPw== X-Forwarded-Encrypted: i=1; AHgh+Rqt5JFvgye4rJ8bxXE/UmVXRH8PkII93GcPDSdabQxphkvgdSt1WZRs4nkja62DFiY0qkKFLXBcSb7KuvaiMQ==@lists.infradead.org X-Gm-Message-State: AOJu0YyNr2CN1Inxwb2VQhyLSV+zIUdykzgoz4t4Fl3zIKRmwfbC3ycM ia/tNvx3nnH77B0ub0qxUeLJPyA6TZuLploYZz0f/Azk/jfTcASQSQLu X-Gm-Gg: AR+sD10IzYNuDOTTYbe0dH1QiR4fnrJnu0td0ufsXYq33tfzHY7K37xp5MC/45RJEH1 boFVkE/4soUJPlO8Oa2gFu1Pjd2QruuVSuOUBf7Vn21WKY+ilwkby6l+LLNI45XS7B8JCjx5WGc U2NOwvBmWAFtJc6dK5OTHjGAxzPncurJTZQU/v1JNv3NL7MCfIjZ4HiNYSIMc79kxJAA1sn8QQG azecQeezJlnQSo+Nd/lpPYjz7XzC2zogtGtWtNIH4GlI+on7Xh4JCR7PZFztHCDyLNubv2XRVTJ yEa1xNHu7bi72KgoLLpW+D+bu9gk5FNvlSoNYF3lxglvRVP7OC37JCyM5+MyhncfBzO6LmidvKb R1Fjzo1SBIipI/Eq6yN4u1Ag0B5mpE3zSZ9gxLxLyFrY4xfII+b9urIs+1MvECiL59+7lL1RTWs Owcb20BPvShj9kxMrGrnqz7X+Npqjpz5NwD9kZ X-Received: by 2002:a17:903:2ec5:b0:2ca:7131:cace with SMTP id d9443c01a7336-2cf3496094emr219480565ad.31.1784629652158; Tue, 21 Jul 2026 03:27:32 -0700 (PDT) Received: from phuc-desktop.. ([183.91.15.56]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2cf3448dac2sm73581365ad.3.2026.07.21.03.27.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 21 Jul 2026 03:27:31 -0700 (PDT) From: phucduc.bui@gmail.com To: Mark Brown , Takashi Iwai , Nick Li , Herve Codina Cc: Support Opensource , Liam Girdwood , Jaroslav Kysela , Srinivas Kandagatla , Charles Keepax , Richard Fitzgerald , Matthias Brugger , AngeloGioacchino Del Regno , Shenghao Ding , Kevin Lu , Baojun Xu , Sen Wang , Oder Chiou , Linus Walleij , Kuninori Morimoto , u.kleine-koenig@baylibre.com, Zhang Yi , Marco Crivellari , Kees Cook , HyeongJun An , Arnd Bergmann , Qianfeng Rong , linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, patches@opensource.cirrus.com, linux-mediatek@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, bui duc phuc Subject: [PATCH v4 09/29] ASoC: codecs: idt821034: Use guard() for mutex locks Date: Tue, 21 Jul 2026 17:25:40 +0700 Message-ID: <20260721102600.523199-10-phucduc.bui@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260721102600.523199-1-phucduc.bui@gmail.com> References: <20260721102600.523199-1-phucduc.bui@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260721_032733_061866_0130BE64 X-CRM114-Status: GOOD ( 15.89 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org From: bui duc phuc Clean up the code using guard() for mutex locks. Merely code refactoring, and no behavior change. Signed-off-by: bui duc phuc --- Changes in v2: - Remove temporary variables and return directly from the functions. sound/soc/codecs/idt821034.c | 144 ++++++++++++++--------------------- 1 file changed, 57 insertions(+), 87 deletions(-) diff --git a/sound/soc/codecs/idt821034.c b/sound/soc/codecs/idt821034.c index 084090ccef77..387f17b5f7b3 100644 --- a/sound/soc/codecs/idt821034.c +++ b/sound/soc/codecs/idt821034.c @@ -7,6 +7,7 @@ // Author: Herve Codina #include +#include #include #include #include @@ -413,12 +414,12 @@ static int idt821034_kctrl_gain_get(struct snd_kcontrol *kcontrol, ch = IDT821034_ID_GET_CHAN(mc->reg); - mutex_lock(&idt821034->mutex); - if (IDT821034_ID_IS_OUT(mc->reg)) - val = idt821034->amps.ch[ch].amp_out.gain; - else - val = idt821034->amps.ch[ch].amp_in.gain; - mutex_unlock(&idt821034->mutex); + scoped_guard(mutex, &idt821034->mutex) { + if (IDT821034_ID_IS_OUT(mc->reg)) + val = idt821034->amps.ch[ch].amp_out.gain; + else + val = idt821034->amps.ch[ch].amp_in.gain; + } ucontrol->value.integer.value[0] = val & mask; if (invert) @@ -456,7 +457,7 @@ static int idt821034_kctrl_gain_put(struct snd_kcontrol *kcontrol, ch = IDT821034_ID_GET_CHAN(mc->reg); - mutex_lock(&idt821034->mutex); + guard(mutex)(&idt821034->mutex); if (IDT821034_ID_IS_OUT(mc->reg)) { amp = &idt821034->amps.ch[ch].amp_out; @@ -466,22 +467,18 @@ static int idt821034_kctrl_gain_put(struct snd_kcontrol *kcontrol, gain_type = IDT821034_GAIN_TX; } - if (amp->gain == val) { - ret = 0; - goto end; - } + if (amp->gain == val) + return 0; if (!amp->is_muted) { ret = idt821034_set_gain_channel(idt821034, ch, gain_type, val); if (ret) - goto end; + return ret; } amp->gain = val; - ret = 1; /* The value changed */ -end: - mutex_unlock(&idt821034->mutex); - return ret; + + return 1; } static int idt821034_kctrl_mute_get(struct snd_kcontrol *kcontrol, @@ -495,11 +492,11 @@ static int idt821034_kctrl_mute_get(struct snd_kcontrol *kcontrol, ch = IDT821034_ID_GET_CHAN(id); - mutex_lock(&idt821034->mutex); - is_muted = IDT821034_ID_IS_OUT(id) ? - idt821034->amps.ch[ch].amp_out.is_muted : - idt821034->amps.ch[ch].amp_in.is_muted; - mutex_unlock(&idt821034->mutex); + scoped_guard(mutex, &idt821034->mutex) { + is_muted = IDT821034_ID_IS_OUT(id) ? + idt821034->amps.ch[ch].amp_out.is_muted : + idt821034->amps.ch[ch].amp_in.is_muted; + } ucontrol->value.integer.value[0] = !is_muted; @@ -521,7 +518,7 @@ static int idt821034_kctrl_mute_put(struct snd_kcontrol *kcontrol, ch = IDT821034_ID_GET_CHAN(id); is_mute = !ucontrol->value.integer.value[0]; - mutex_lock(&idt821034->mutex); + guard(mutex)(&idt821034->mutex); if (IDT821034_ID_IS_OUT(id)) { amp = &idt821034->amps.ch[ch].amp_out; @@ -531,21 +528,17 @@ static int idt821034_kctrl_mute_put(struct snd_kcontrol *kcontrol, gain_type = IDT821034_GAIN_TX; } - if (amp->is_muted == is_mute) { - ret = 0; - goto end; - } + if (amp->is_muted == is_mute) + return 0; ret = idt821034_set_gain_channel(idt821034, ch, gain_type, is_mute ? 0 : amp->gain); if (ret) - goto end; + return ret; amp->is_muted = is_mute; - ret = 1; /* The value changed */ -end: - mutex_unlock(&idt821034->mutex); - return ret; + + return 1; } static const DECLARE_TLV_DB_LINEAR(idt821034_gain_in, -300, 1300); @@ -623,24 +616,20 @@ static int idt821034_power_event(struct snd_soc_dapm_widget *w, struct idt821034 *idt821034 = snd_soc_component_get_drvdata(component); unsigned int id = w->shift; u8 power, mask; - int ret; u8 ch; ch = IDT821034_ID_GET_CHAN(id); mask = IDT821034_ID_IS_OUT(id) ? IDT821034_CONF_PWRUP_RX : IDT821034_CONF_PWRUP_TX; - mutex_lock(&idt821034->mutex); + guard(mutex)(&idt821034->mutex); power = idt821034_get_channel_power(idt821034, ch); if (SND_SOC_DAPM_EVENT_ON(event)) power |= mask; else power &= ~mask; - ret = idt821034_set_channel_power(idt821034, ch, power); - - mutex_unlock(&idt821034->mutex); - return ret; + return idt821034_set_channel_power(idt821034, ch, power); } static const struct snd_soc_dapm_widget idt821034_dapm_widgets[] = { @@ -717,9 +706,9 @@ static int idt821034_dai_set_tdm_slot(struct snd_soc_dai *dai, ch = 0; while (mask && ch < IDT821034_NB_CHANNEL) { if (mask & 0x1) { - mutex_lock(&idt821034->mutex); - ret = idt821034_set_channel_ts(idt821034, ch, IDT821034_CH_RX, slot); - mutex_unlock(&idt821034->mutex); + scoped_guard(mutex, &idt821034->mutex) + ret = idt821034_set_channel_ts(idt821034, ch, + IDT821034_CH_RX, slot); if (ret) { dev_err(dai->dev, "ch%u set tx tdm slot failed (%d)\n", ch, ret); @@ -742,9 +731,9 @@ static int idt821034_dai_set_tdm_slot(struct snd_soc_dai *dai, ch = 0; while (mask && ch < IDT821034_NB_CHANNEL) { if (mask & 0x1) { - mutex_lock(&idt821034->mutex); - ret = idt821034_set_channel_ts(idt821034, ch, IDT821034_CH_TX, slot); - mutex_unlock(&idt821034->mutex); + scoped_guard(mutex, &idt821034->mutex) + ret = idt821034_set_channel_ts(idt821034, ch, + IDT821034_CH_TX, slot); if (ret) { dev_err(dai->dev, "ch%u set rx tdm slot failed (%d)\n", ch, ret); @@ -769,9 +758,8 @@ static int idt821034_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) { struct idt821034 *idt821034 = snd_soc_component_get_drvdata(dai->component); u8 conf; - int ret; - mutex_lock(&idt821034->mutex); + guard(mutex)(&idt821034->mutex); conf = idt821034_get_codec_conf(idt821034); @@ -785,13 +773,10 @@ static int idt821034_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) default: dev_err(dai->dev, "Unsupported DAI format 0x%x\n", fmt & SND_SOC_DAIFMT_FORMAT_MASK); - ret = -EINVAL; - goto end; + return -EINVAL; } - ret = idt821034_set_codec_conf(idt821034, conf); -end: - mutex_unlock(&idt821034->mutex); - return ret; + + return idt821034_set_codec_conf(idt821034, conf); } static int idt821034_dai_hw_params(struct snd_pcm_substream *substream, @@ -800,9 +785,8 @@ static int idt821034_dai_hw_params(struct snd_pcm_substream *substream, { struct idt821034 *idt821034 = snd_soc_component_get_drvdata(dai->component); u8 conf; - int ret; - mutex_lock(&idt821034->mutex); + guard(mutex)(&idt821034->mutex); conf = idt821034_get_codec_conf(idt821034); @@ -816,13 +800,10 @@ static int idt821034_dai_hw_params(struct snd_pcm_substream *substream, default: dev_err(dai->dev, "Unsupported PCM format 0x%x\n", params_format(params)); - ret = -EINVAL; - goto end; + return -EINVAL; } - ret = idt821034_set_codec_conf(idt821034, conf); -end: - mutex_unlock(&idt821034->mutex); - return ret; + + return idt821034_set_codec_conf(idt821034, conf); } static const unsigned int idt821034_sample_bits[] = {8}; @@ -897,11 +878,11 @@ static int idt821034_reset_audio(struct idt821034 *idt821034) int ret; u8 i; - mutex_lock(&idt821034->mutex); + guard(mutex)(&idt821034->mutex); ret = idt821034_set_codec_conf(idt821034, 0); if (ret) - goto end; + return ret; for (i = 0; i < IDT821034_NB_CHANNEL; i++) { idt821034->amps.ch[i].amp_out.gain = IDT821034_GAIN_OUT_INIT_RAW; @@ -909,24 +890,21 @@ static int idt821034_reset_audio(struct idt821034 *idt821034) ret = idt821034_set_gain_channel(idt821034, i, IDT821034_GAIN_RX, idt821034->amps.ch[i].amp_out.gain); if (ret) - goto end; + return ret; idt821034->amps.ch[i].amp_in.gain = IDT821034_GAIN_IN_INIT_RAW; idt821034->amps.ch[i].amp_in.is_muted = false; ret = idt821034_set_gain_channel(idt821034, i, IDT821034_GAIN_TX, idt821034->amps.ch[i].amp_in.gain); if (ret) - goto end; + return ret; ret = idt821034_set_channel_power(idt821034, i, 0); if (ret) - goto end; + return ret; } - ret = 0; -end: - mutex_unlock(&idt821034->mutex); - return ret; + return 0; } static int idt821034_component_probe(struct snd_soc_component *component) @@ -965,7 +943,7 @@ static int idt821034_chip_gpio_set(struct gpio_chip *c, unsigned int offset, u8 slic_raw; int ret; - mutex_lock(&idt821034->mutex); + guard(mutex)(&idt821034->mutex); slic_raw = idt821034_get_written_slic_raw(idt821034, ch); if (val) @@ -974,8 +952,6 @@ static int idt821034_chip_gpio_set(struct gpio_chip *c, unsigned int offset, slic_raw &= ~mask; ret = idt821034_write_slic_raw(idt821034, ch, slic_raw); - mutex_unlock(&idt821034->mutex); - if (ret) dev_err(&idt821034->spi->dev, "set gpio %d (%u, 0x%x) failed (%d)\n", offset, ch, mask, ret); @@ -991,9 +967,8 @@ static int idt821034_chip_gpio_get(struct gpio_chip *c, unsigned int offset) u8 slic_raw; int ret; - mutex_lock(&idt821034->mutex); - ret = idt821034_read_slic_raw(idt821034, ch, &slic_raw); - mutex_unlock(&idt821034->mutex); + scoped_guard(mutex, &idt821034->mutex) + ret = idt821034_read_slic_raw(idt821034, ch, &slic_raw); if (ret) { dev_err(&idt821034->spi->dev, "get gpio %d (%u, 0x%x) failed (%d)\n", offset, ch, mask, ret); @@ -1015,9 +990,8 @@ static int idt821034_chip_get_direction(struct gpio_chip *c, unsigned int offset struct idt821034 *idt821034 = gpiochip_get_data(c); u8 slic_dir; - mutex_lock(&idt821034->mutex); + guard(mutex)(&idt821034->mutex); slic_dir = idt821034_get_slic_conf(idt821034, ch); - mutex_unlock(&idt821034->mutex); return slic_dir & mask ? GPIO_LINE_DIRECTION_IN : GPIO_LINE_DIRECTION_OUT; } @@ -1034,7 +1008,7 @@ static int idt821034_chip_direction_input(struct gpio_chip *c, unsigned int offs if (mask & ~(IDT821034_SLIC_IO1_IN | IDT821034_SLIC_IO0_IN)) return -EPERM; - mutex_lock(&idt821034->mutex); + guard(mutex)(&idt821034->mutex); slic_conf = idt821034_get_slic_conf(idt821034, ch) | mask; @@ -1044,7 +1018,6 @@ static int idt821034_chip_direction_input(struct gpio_chip *c, unsigned int offs offset, ch, mask, ret); } - mutex_unlock(&idt821034->mutex); return ret; } @@ -1060,7 +1033,7 @@ static int idt821034_chip_direction_output(struct gpio_chip *c, unsigned int off if (ret) return ret; - mutex_lock(&idt821034->mutex); + guard(mutex)(&idt821034->mutex); slic_conf = idt821034_get_slic_conf(idt821034, ch) & ~mask; @@ -1070,7 +1043,6 @@ static int idt821034_chip_direction_output(struct gpio_chip *c, unsigned int off offset, ch, mask, ret); } - mutex_unlock(&idt821034->mutex); return ret; } @@ -1079,24 +1051,22 @@ static int idt821034_reset_gpio(struct idt821034 *idt821034) int ret; u8 i; - mutex_lock(&idt821034->mutex); + guard(mutex)(&idt821034->mutex); /* IO0 and IO1 as input for all channels and output IO set to 0 */ for (i = 0; i < IDT821034_NB_CHANNEL; i++) { ret = idt821034_set_slic_conf(idt821034, i, IDT821034_SLIC_IO1_IN | IDT821034_SLIC_IO0_IN); if (ret) - goto end; + return ret; ret = idt821034_write_slic_raw(idt821034, i, 0); if (ret) - goto end; + return ret; } - ret = 0; -end: - mutex_unlock(&idt821034->mutex); - return ret; + + return 0; } static int idt821034_gpio_init(struct idt821034 *idt821034) -- 2.43.0