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([183.91.15.56]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2cfa57542e0sm7258365ad.67.2026.07.22.21.56.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 22 Jul 2026 21:56:17 -0700 (PDT) From: phucduc.bui@gmail.com To: Mark Brown , Liam Girdwood , Jaroslav Kysela , Takashi Iwai , Lars-Peter Clausen , nuno.sa@analog.com, Shenghao Ding , Kevin Lu Cc: Baojun Xu , Sen Wang , Steven Eckhoff , Srinivas Kandagatla , Kuninori Morimoto , Charles Keepax , Linus Walleij , u.kleine-koenig@baylibre.com, Thorsten Blum , Kees Cook , Chen Ni , Bartosz Golaszewski , Shengjiu Wang , Sebastian Krzyszkowiak , Pengpeng Hou , Richard Fitzgerald , patches@opensource.cirrus.com, linux-kernel@vger.kernel.org, linux-sound@vger.kernel.org, linux-arm-msm@vger.kernel.org, bui duc phuc Subject: [PATCH 20/26] ASoC: codecs: wm8903: Use guard() for mutex locks Date: Thu, 23 Jul 2026 11:53:21 +0700 Message-ID: <20260723045327.28260-21-phucduc.bui@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260723045327.28260-1-phucduc.bui@gmail.com> References: <20260723045327.28260-1-phucduc.bui@gmail.com> Precedence: bulk X-Mailing-List: linux-arm-msm@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/wm8903.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/sound/soc/codecs/wm8903.c b/sound/soc/codecs/wm8903.c index 320d7737699d..156e1e24a388 100644 --- a/sound/soc/codecs/wm8903.c +++ b/sound/soc/codecs/wm8903.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include #include @@ -458,22 +459,20 @@ static int wm8903_put_deemph(struct snd_kcontrol *kcontrol, struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); struct wm8903_priv *wm8903 = snd_soc_component_get_drvdata(component); unsigned int deemph = ucontrol->value.integer.value[0]; - int ret = 0; if (deemph > 1) return -EINVAL; - mutex_lock(&wm8903->lock); + guard(mutex)(&wm8903->lock); if (wm8903->deemph != deemph) { wm8903->deemph = deemph; wm8903_set_deemph(component); - ret = 1; + return 1; } - mutex_unlock(&wm8903->lock); - return ret; + return 0; } /* ALSA can only do steps of .01dB */ -- 2.43.0