From ed2e18138f1849bcc573daf4f9b80ee6f0dc394c Mon Sep 17 00:00:00 2001 From: bui duc phuc Date: Tue, 21 Jul 2026 17:25:48 +0700 Subject: [PATCH] ASoC: codecs: rt5514-spi: Use guard() for mutex locks Clean up the code using guard() for mutex locks. Merely code refactoring, and no behavior change. Signed-off-by: bui duc phuc Link: https://patch.msgid.link/20260721102600.523199-18-phucduc.bui@gmail.com Signed-off-by: Mark Brown --- sound/soc/codecs/rt5514-spi.c | 21 ++++++++------------- 1 file changed, 8 insertions(+), 13 deletions(-) diff --git a/sound/soc/codecs/rt5514-spi.c b/sound/soc/codecs/rt5514-spi.c index 199507d12841..91290bfe8daa 100644 --- a/sound/soc/codecs/rt5514-spi.c +++ b/sound/soc/codecs/rt5514-spi.c @@ -6,6 +6,7 @@ * Author: Oder Chiou */ +#include #include #include #include @@ -79,17 +80,17 @@ static void rt5514_spi_copy_work(struct work_struct *work) unsigned int cur_wp, remain_data; u8 buf[8]; - mutex_lock(&rt5514_dsp->dma_lock); + guard(mutex)(&rt5514_dsp->dma_lock); if (!rt5514_dsp->substream) { dev_err(rt5514_dsp->dev, "No pcm substream\n"); - goto done; + return; } runtime = rt5514_dsp->substream->runtime; period_bytes = snd_pcm_lib_period_bytes(rt5514_dsp->substream); if (!period_bytes) { schedule_delayed_work(&rt5514_dsp->copy_work, 5); - goto done; + return; } if (rt5514_dsp->buf_size % period_bytes) @@ -111,7 +112,7 @@ static void rt5514_spi_copy_work(struct work_struct *work) if (remain_data < period_bytes) { schedule_delayed_work(&rt5514_dsp->copy_work, 5); - goto done; + return; } } @@ -146,9 +147,6 @@ static void rt5514_spi_copy_work(struct work_struct *work) snd_pcm_period_elapsed(rt5514_dsp->substream); schedule_delayed_work(&rt5514_dsp->copy_work, 5); - -done: - mutex_unlock(&rt5514_dsp->dma_lock); } static void rt5514_schedule_copy(struct rt5514_dsp *rt5514_dsp) @@ -216,7 +214,7 @@ static int rt5514_spi_hw_params(struct snd_soc_component *component, snd_soc_component_get_drvdata(component); u8 buf[8]; - mutex_lock(&rt5514_dsp->dma_lock); + guard(mutex)(&rt5514_dsp->dma_lock); rt5514_dsp->substream = substream; rt5514_dsp->dma_offset = 0; @@ -225,8 +223,6 @@ static int rt5514_spi_hw_params(struct snd_soc_component *component, if (buf[0] & RT5514_IRQ_STATUS_BIT) rt5514_schedule_copy(rt5514_dsp); - mutex_unlock(&rt5514_dsp->dma_lock); - return 0; } @@ -236,9 +232,8 @@ static int rt5514_spi_hw_free(struct snd_soc_component *component, struct rt5514_dsp *rt5514_dsp = snd_soc_component_get_drvdata(component); - mutex_lock(&rt5514_dsp->dma_lock); - rt5514_dsp->substream = NULL; - mutex_unlock(&rt5514_dsp->dma_lock); + scoped_guard(mutex, &rt5514_dsp->dma_lock) + rt5514_dsp->substream = NULL; cancel_delayed_work_sync(&rt5514_dsp->copy_work);