Re: [PATCH v2 06/11] ASoC: fsl_ssi: Use guard() for mutex locks
From: Frank Li <hidden>
Date: 2026-06-15 14:25:25
Also in:
imx, linux-arm-kernel, linux-sound, lkml
On Mon, Jun 15, 2026 at 04:38:19PM +0700, phucduc.bui@gmail.com wrote:
From: bui duc phuc <redacted> Clean up the code using guard() for mutex locks. Merely code refactoring, and no behavior change. Signed-off-by: bui duc phuc <redacted> ---
Reviewed-by: Frank Li <Frank.Li@nxp.com>
quoted hunk ↗ jump to hunk
sound/soc/fsl/fsl_ssi.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-)diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c index b2e1da1781ae..dc022976c982 100644 --- a/sound/soc/fsl/fsl_ssi.c +++ b/sound/soc/fsl/fsl_ssi.c@@ -1218,13 +1218,13 @@ static void fsl_ssi_ac97_write(struct snd_ac97 *ac97, unsigned short reg, if (reg > 0x7f) return; - mutex_lock(&fsl_ac97_data->ac97_reg_lock); + guard(mutex)(&fsl_ac97_data->ac97_reg_lock); ret = clk_prepare_enable(fsl_ac97_data->clk); if (ret) { pr_err("ac97 write clk_prepare_enable failed: %d\n", ret); - goto ret_unlock; + return; } lreg = reg << 12;@@ -1238,9 +1238,6 @@ static void fsl_ssi_ac97_write(struct snd_ac97 *ac97, unsigned short reg, udelay(100); clk_disable_unprepare(fsl_ac97_data->clk); - -ret_unlock: - mutex_unlock(&fsl_ac97_data->ac97_reg_lock); } static unsigned short fsl_ssi_ac97_read(struct snd_ac97 *ac97,@@ -1252,12 +1249,12 @@ static unsigned short fsl_ssi_ac97_read(struct snd_ac97 *ac97, unsigned int lreg; int ret; - mutex_lock(&fsl_ac97_data->ac97_reg_lock); + guard(mutex)(&fsl_ac97_data->ac97_reg_lock); ret = clk_prepare_enable(fsl_ac97_data->clk); if (ret) { pr_err("ac97 read clk_prepare_enable failed: %d\n", ret); - goto ret_unlock; + return val; } lreg = (reg & 0x7f) << 12;@@ -1272,8 +1269,6 @@ static unsigned short fsl_ssi_ac97_read(struct snd_ac97 *ac97, clk_disable_unprepare(fsl_ac97_data->clk); -ret_unlock: - mutex_unlock(&fsl_ac97_data->ac97_reg_lock); return val; } --2.43.0