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([183.91.15.56]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-387d20a2f2fsm2784349a91.13.2026.07.08.05.51.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 08 Jul 2026 05:51:42 -0700 (PDT) From: phucduc.bui@gmail.com To: Mark Brown , Takashi Iwai , Tzung-Bi Shih , David Rhodes , Charles Keepax Cc: Liam Girdwood , Jaroslav Kysela , Cheng-Yi Chiang , Guenter Roeck , Benson Leung , Richard Fitzgerald , povik+lin@cutebit.org, u.kleine-koenig@baylibre.com, kuninori.morimoto.gx@renesas.com, christian.ehrhardt@codasip.com, Linus Walleij , Arnd Bergmann , Sakari Ailus , Thorsten Blum , Chris Morgan , Dan Carpenter , Marco Crivellari , Rosen Penev , Weidong Wang , Teguh Sobirin , Val Packett , Luca Weiss , wangdicheng , linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, patches@opensource.cirrus.com, chrome-platform@lists.linux.dev, asahi@lists.linux.dev, Cezary Rojewski , bui duc phuc Subject: [PATCH v4 09/24] ASoC: codecs: aw88395: Use guard() for mutex locks Date: Wed, 8 Jul 2026 19:49:46 +0700 Message-ID: <20260708125002.202515-10-phucduc.bui@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260708125002.202515-1-phucduc.bui@gmail.com> References: <20260708125002.202515-1-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. Reviewed-by: Cezary Rojewski Signed-off-by: bui duc phuc --- sound/soc/codecs/aw88395/aw88395.c | 24 ++++++-------- sound/soc/codecs/aw88395/aw88395_device.c | 40 ++++++++--------------- 2 files changed, 24 insertions(+), 40 deletions(-) diff --git a/sound/soc/codecs/aw88395/aw88395.c b/sound/soc/codecs/aw88395/aw88395.c index ee0e8bd8c54c..e9ff2c79ac15 100644 --- a/sound/soc/codecs/aw88395/aw88395.c +++ b/sound/soc/codecs/aw88395/aw88395.c @@ -8,6 +8,7 @@ // Author: Weidong Wang // +#include #include #include #include @@ -51,9 +52,8 @@ static void aw88395_startup_work(struct work_struct *work) struct aw88395 *aw88395 = container_of(work, struct aw88395, start_work.work); - mutex_lock(&aw88395->lock); + guard(mutex)(&aw88395->lock); aw88395_start_pa(aw88395); - mutex_unlock(&aw88395->lock); } static void aw88395_start(struct aw88395 *aw88395, bool sync_start) @@ -224,11 +224,10 @@ static int aw88395_profile_set(struct snd_kcontrol *kcontrol, int ret; /* pa stop or stopping just set profile */ - mutex_lock(&aw88395->lock); + guard(mutex)(&aw88395->lock); ret = aw88395_dev_set_profile_index(aw88395->aw_pa, ucontrol->value.integer.value[0]); if (ret < 0) { dev_dbg(codec->dev, "profile index does not change"); - mutex_unlock(&aw88395->lock); return 0; } @@ -237,8 +236,6 @@ static int aw88395_profile_set(struct snd_kcontrol *kcontrol, aw88395_start(aw88395, AW88395_SYNC_START); } - mutex_unlock(&aw88395->lock); - return 1; } @@ -366,7 +363,7 @@ static int aw88395_playback_event(struct snd_soc_dapm_widget *w, struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); struct aw88395 *aw88395 = snd_soc_component_get_drvdata(component); - mutex_lock(&aw88395->lock); + guard(mutex)(&aw88395->lock); switch (event) { case SND_SOC_DAPM_PRE_PMU: aw88395_start(aw88395, AW88395_ASYNC_START); @@ -377,7 +374,6 @@ static int aw88395_playback_event(struct snd_soc_dapm_widget *w, default: break; } - mutex_unlock(&aw88395->lock); return 0; } @@ -495,12 +491,12 @@ static int aw88395_request_firmware_file(struct aw88395 *aw88395) dev_dbg(aw88395->aw_pa->dev, "%s : bin load success\n", __func__); - mutex_lock(&aw88395->lock); - /* aw device init */ - ret = aw88395_dev_init(aw88395->aw_pa, aw88395->aw_cfg); - if (ret < 0) - dev_err(aw88395->aw_pa->dev, "dev init failed"); - mutex_unlock(&aw88395->lock); + scoped_guard(mutex, &aw88395->lock) { + /* aw device init */ + ret = aw88395_dev_init(aw88395->aw_pa, aw88395->aw_cfg); + if (ret < 0) + dev_err(aw88395->aw_pa->dev, "dev init failed"); + } return ret; } diff --git a/sound/soc/codecs/aw88395/aw88395_device.c b/sound/soc/codecs/aw88395/aw88395_device.c index 79c3135a4110..12d42d27560d 100644 --- a/sound/soc/codecs/aw88395/aw88395_device.c +++ b/sound/soc/codecs/aw88395/aw88395_device.c @@ -8,6 +8,7 @@ // Author: Ben Yi // +#include #include #include #include @@ -70,7 +71,7 @@ int aw_dev_dsp_write(struct aw_device *aw_dev, u32 reg_value; int ret; - mutex_lock(&aw_dev->dsp_lock); + guard(mutex)(&aw_dev->dsp_lock); switch (data_type) { case AW_DSP_16_DATA: ret = aw_dev_dsp_write_16bit(aw_dev, dsp_addr, dsp_data); @@ -93,7 +94,6 @@ int aw_dev_dsp_write(struct aw_device *aw_dev, /* clear dsp chip select state*/ if (regmap_read(aw_dev->regmap, AW88395_ID_REG, ®_value)) dev_err(aw_dev->dev, "%s fail to clear chip state. Err=%d\n", __func__, ret); - mutex_unlock(&aw_dev->dsp_lock); return ret; } @@ -156,7 +156,7 @@ int aw_dev_dsp_read(struct aw_device *aw_dev, u32 reg_value; int ret; - mutex_lock(&aw_dev->dsp_lock); + guard(mutex)(&aw_dev->dsp_lock); switch (data_type) { case AW_DSP_16_DATA: ret = aw_dev_dsp_read_16bit(aw_dev, dsp_addr, dsp_data); @@ -179,7 +179,6 @@ int aw_dev_dsp_read(struct aw_device *aw_dev, /* clear dsp chip select state*/ if (regmap_read(aw_dev->regmap, AW88395_ID_REG, ®_value)) dev_err(aw_dev->dev, "%s fail to clear chip state. Err=%d\n", __func__, ret); - mutex_unlock(&aw_dev->dsp_lock); return ret; } @@ -1110,42 +1109,36 @@ static int aw_dev_dsp_update_container(struct aw_device *aw_dev, #ifdef AW88395_DSP_I2C_WRITES u32 tmp_len; - mutex_lock(&aw_dev->dsp_lock); + guard(mutex)(&aw_dev->dsp_lock); ret = regmap_write(aw_dev->regmap, AW88395_DSPMADD_REG, base); if (ret) - goto error_operation; + return ret; for (i = 0; i < len; i += AW88395_MAX_RAM_WRITE_BYTE_SIZE) { tmp_len = min(len - i, AW88395_MAX_RAM_WRITE_BYTE_SIZE); ret = regmap_raw_write(aw_dev->regmap, AW88395_DSPMDAT_REG, &data[i], tmp_len); if (ret) - goto error_operation; + return ret; } - mutex_unlock(&aw_dev->dsp_lock); #else __be16 reg_val; - mutex_lock(&aw_dev->dsp_lock); + guard(mutex)(&aw_dev->dsp_lock); /* i2c write */ ret = regmap_write(aw_dev->regmap, AW88395_DSPMADD_REG, base); if (ret) - goto error_operation; + return ret; for (i = 0; i < len; i += 2) { reg_val = cpu_to_be16p((u16 *)(data + i)); ret = regmap_write(aw_dev->regmap, AW88395_DSPMDAT_REG, (u16)reg_val); if (ret) - goto error_operation; + return ret; } - mutex_unlock(&aw_dev->dsp_lock); #endif return 0; - -error_operation: - mutex_unlock(&aw_dev->dsp_lock); - return ret; } static int aw_dev_dsp_update_fw(struct aw_device *aw_dev, @@ -1231,14 +1224,14 @@ static int aw_dev_check_sram(struct aw_device *aw_dev) { unsigned int reg_val; - mutex_lock(&aw_dev->dsp_lock); + guard(mutex)(&aw_dev->dsp_lock); /* check the odd bits of reg 0x40 */ regmap_write(aw_dev->regmap, AW88395_DSPMADD_REG, AW88395_DSP_ODD_NUM_BIT_TEST); regmap_read(aw_dev->regmap, AW88395_DSPMADD_REG, ®_val); if (reg_val != AW88395_DSP_ODD_NUM_BIT_TEST) { dev_err(aw_dev->dev, "check reg 0x40 odd bit failed, read[0x%x] != write[0x%x]", reg_val, AW88395_DSP_ODD_NUM_BIT_TEST); - goto error; + return -EPERM; } /* check the even bits of reg 0x40 */ @@ -1247,7 +1240,7 @@ static int aw_dev_check_sram(struct aw_device *aw_dev) if (reg_val != AW88395_DSP_EVEN_NUM_BIT_TEST) { dev_err(aw_dev->dev, "check reg 0x40 even bit failed, read[0x%x] != write[0x%x]", reg_val, AW88395_DSP_EVEN_NUM_BIT_TEST); - goto error; + return -EPERM; } /* check dsp_fw_base_addr */ @@ -1256,7 +1249,7 @@ static int aw_dev_check_sram(struct aw_device *aw_dev) if (reg_val != AW88395_DSP_EVEN_NUM_BIT_TEST) { dev_err(aw_dev->dev, "check dsp fw addr failed, read[0x%x] != write[0x%x]", reg_val, AW88395_DSP_EVEN_NUM_BIT_TEST); - goto error; + return -EPERM; } /* check dsp_cfg_base_addr */ @@ -1265,15 +1258,10 @@ static int aw_dev_check_sram(struct aw_device *aw_dev) if (reg_val != AW88395_DSP_ODD_NUM_BIT_TEST) { dev_err(aw_dev->dev, "check dsp cfg failed, read[0x%x] != write[0x%x]", reg_val, AW88395_DSP_ODD_NUM_BIT_TEST); - goto error; + return -EPERM; } - mutex_unlock(&aw_dev->dsp_lock); return 0; - -error: - mutex_unlock(&aw_dev->dsp_lock); - return -EPERM; } int aw88395_dev_fw_update(struct aw_device *aw_dev, bool up_dsp_fw_en, bool force_up_en) -- 2.43.0