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([183.91.15.56]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-3081e5d0828sm24616275eec.10.2026.06.17.03.35.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 17 Jun 2026 03:35:19 -0700 (PDT) From: phucduc.bui@gmail.com To: Mark Brown Cc: Liam Girdwood , Jaroslav Kysela , Takashi Iwai , Cheng-Yi Chiang , Tzung-Bi Shih , Guenter Roeck , Benson Leung , David Rhodes , Richard Fitzgerald , povik+lin@cutebit.org, Charles Keepax , Support Opensource , Nick Li , Herve Codina , Srinivas Kandagatla , Matthias Brugger , AngeloGioacchino Del Regno , Shenghao Ding , Kevin Lu , Baojun Xu , Sen Wang , Oder Chiou , Lars-Peter Clausen , nuno.sa@analog.com, Steven Eckhoff , patches@opensource.cirrus.com, chrome-platform@lists.linux.dev, asahi@lists.linux.dev, linux-arm-msm@vger.kernel.org, linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, bui duc phuc Subject: [PATCH 15/78] ASoC: codecs: cs42l43: Use guard() for mutex locks Date: Wed, 17 Jun 2026 17:31:32 +0700 Message-ID: <20260617103235.449609-16-phucduc.bui@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260617103235.449609-1-phucduc.bui@gmail.com> References: <20260617103235.449609-1-phucduc.bui@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 --- sound/soc/codecs/cs42l43-jack.c | 57 +++++++++++++-------------------- sound/soc/codecs/cs42l43.c | 16 +++------ 2 files changed, 27 insertions(+), 46 deletions(-) diff --git a/sound/soc/codecs/cs42l43-jack.c b/sound/soc/codecs/cs42l43-jack.c index 934666295ee3..d6c0f5139792 100644 --- a/sound/soc/codecs/cs42l43-jack.c +++ b/sound/soc/codecs/cs42l43-jack.c @@ -445,20 +445,18 @@ irqreturn_t cs42l43_button_release(int irq, void *data) return iret; } - mutex_lock(&priv->jack_lock); - - if (priv->button_detect_running) { - dev_dbg(priv->dev, "Button release IRQ\n"); + scoped_guard(mutex, &priv->jack_lock) { + if (priv->button_detect_running) { + dev_dbg(priv->dev, "Button release IRQ\n"); - snd_soc_jack_report(priv->jack_hp, 0, CS42L43_JACK_BUTTONS); + snd_soc_jack_report(priv->jack_hp, 0, CS42L43_JACK_BUTTONS); - iret = IRQ_HANDLED; - } else { - dev_dbg(priv->dev, "Spurious button release IRQ\n"); + iret = IRQ_HANDLED; + } else { + dev_dbg(priv->dev, "Spurious button release IRQ\n"); + } } - mutex_unlock(&priv->jack_lock); - pm_runtime_put_autosuspend(priv->dev); return iret; @@ -477,22 +475,20 @@ void cs42l43_bias_sense_timeout(struct work_struct *work) return; } - mutex_lock(&priv->jack_lock); - - if (cs42l43_jack_present(priv) && priv->button_detect_running) { - dev_dbg(priv->dev, "Bias sense timeout out, restore bias\n"); + scoped_guard(mutex, &priv->jack_lock) { + if (cs42l43_jack_present(priv) && priv->button_detect_running) { + dev_dbg(priv->dev, "Bias sense timeout out, restore bias\n"); - regmap_update_bits(cs42l43->regmap, - CS42L43_HS_BIAS_SENSE_AND_CLAMP_AUTOCONTROL, - CS42L43_AUTO_HSBIAS_CLAMP_EN_MASK, 0); - regmap_update_bits(cs42l43->regmap, - CS42L43_HS_BIAS_SENSE_AND_CLAMP_AUTOCONTROL, - CS42L43_AUTO_HSBIAS_CLAMP_EN_MASK, - CS42L43_AUTO_HSBIAS_CLAMP_EN_MASK); + regmap_update_bits(cs42l43->regmap, + CS42L43_HS_BIAS_SENSE_AND_CLAMP_AUTOCONTROL, + CS42L43_AUTO_HSBIAS_CLAMP_EN_MASK, 0); + regmap_update_bits(cs42l43->regmap, + CS42L43_HS_BIAS_SENSE_AND_CLAMP_AUTOCONTROL, + CS42L43_AUTO_HSBIAS_CLAMP_EN_MASK, + CS42L43_AUTO_HSBIAS_CLAMP_EN_MASK); + } } - mutex_unlock(&priv->jack_lock); - pm_runtime_put_autosuspend(priv->dev); } @@ -895,9 +891,8 @@ int cs42l43_jack_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *u struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); struct cs42l43_codec *priv = snd_soc_component_get_drvdata(component); - mutex_lock(&priv->jack_lock); + guard(mutex)(&priv->jack_lock); ucontrol->value.integer.value[0] = priv->jack_override; - mutex_unlock(&priv->jack_lock); return 0; } @@ -913,17 +908,13 @@ int cs42l43_jack_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *u if (override >= e->items) return -EINVAL; - mutex_lock(&priv->jack_lock); + guard(mutex)(&priv->jack_lock); - if (!cs42l43_jack_present(priv)) { - mutex_unlock(&priv->jack_lock); + if (!cs42l43_jack_present(priv)) return -EBUSY; - } - if (override == priv->jack_override) { - mutex_unlock(&priv->jack_lock); + if (override == priv->jack_override) return 0; - } priv->jack_override = override; @@ -983,7 +974,5 @@ int cs42l43_jack_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *u cs42l43_jack_override_modes[override].report); } - mutex_unlock(&priv->jack_lock); - return 1; } diff --git a/sound/soc/codecs/cs42l43.c b/sound/soc/codecs/cs42l43.c index f0d6ff0b2976..72c5c0340c48 100644 --- a/sound/soc/codecs/cs42l43.c +++ b/sound/soc/codecs/cs42l43.c @@ -1208,14 +1208,12 @@ static void cs42l43_spk_vu_sync(struct cs42l43_codec *priv) { struct cs42l43 *cs42l43 = priv->core; - mutex_lock(&priv->spk_vu_lock); + guard(mutex)(&priv->spk_vu_lock); regmap_update_bits(cs42l43->regmap, CS42L43_INTP_VOLUME_CTRL1, CS42L43_AMP1_2_VU_MASK, CS42L43_AMP1_2_VU_MASK); regmap_update_bits(cs42l43->regmap, CS42L43_INTP_VOLUME_CTRL1, CS42L43_AMP1_2_VU_MASK, 0); - - mutex_unlock(&priv->spk_vu_lock); } static int cs42l43_shutter_get(struct cs42l43_codec *priv, unsigned int shift) @@ -1602,7 +1600,7 @@ static int cs42l43_pll_ev(struct snd_soc_dapm_widget *w, struct cs42l43 *cs42l43 = priv->core; int ret; - mutex_lock(&cs42l43->pll_lock); + guard(mutex)(&cs42l43->pll_lock); switch (event) { case SND_SOC_DAPM_PRE_PMU: @@ -1627,8 +1625,6 @@ static int cs42l43_pll_ev(struct snd_soc_dapm_widget *w, break; } - mutex_unlock(&cs42l43->pll_lock); - return ret; } @@ -2566,13 +2562,9 @@ static int cs42l43_set_sysclk(struct snd_soc_component *component, int clk_id, { struct cs42l43_codec *priv = snd_soc_component_get_drvdata(component); struct cs42l43 *cs42l43 = priv->core; - int ret; - mutex_lock(&cs42l43->pll_lock); - ret = cs42l43_set_pll(priv, src, freq); - mutex_unlock(&cs42l43->pll_lock); - - return ret; + guard(mutex)(&cs42l43->pll_lock); + return cs42l43_set_pll(priv, src, freq); } static int cs42l43_component_probe(struct snd_soc_component *component) -- 2.43.0