From 5a66f232aa5a5f168c15ff26c0edafb0fb2b20ec Mon Sep 17 00:00:00 2001 From: bui duc phuc Date: Fri, 31 Jul 2026 10:06:35 +0700 Subject: [PATCH] ASoC: codecs: wcd937x: 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 Reviewed-by: Cezary Rojewski Link: https://patch.msgid.link/20260731030648.8706-14-phucduc.bui@gmail.com Signed-off-by: Mark Brown --- sound/soc/codecs/wcd937x.c | 25 ++++++++++--------------- 1 file changed, 10 insertions(+), 15 deletions(-) diff --git a/sound/soc/codecs/wcd937x.c b/sound/soc/codecs/wcd937x.c index e0169e783ee9..0dd05604f5b8 100644 --- a/sound/soc/codecs/wcd937x.c +++ b/sound/soc/codecs/wcd937x.c @@ -2,6 +2,7 @@ // Copyright (c) 2023-2024 Qualcomm Innovation Center, Inc. All rights reserved. #include +#include #include #include #include @@ -1056,7 +1057,7 @@ static int wcd937x_micbias_control(struct snd_soc_component *component, return -EINVAL; } - mutex_lock(&wcd937x->micb_lock); + guard(mutex)(&wcd937x->micb_lock); switch (req) { case MICB_PULLUP_ENABLE: wcd937x->pullup_ref[micb_index]++; @@ -1136,7 +1137,6 @@ static int wcd937x_micbias_control(struct snd_soc_component *component, } break; } - mutex_unlock(&wcd937x->micb_lock); return 0; } @@ -1460,7 +1460,7 @@ static int wcd937x_mbhc_micb_adjust_voltage(struct snd_soc_component *component, int req_volt, int micb_num) { struct wcd937x_priv *wcd937x = snd_soc_component_get_drvdata(component); - int cur_vout_ctl, req_vout_ctl, micb_reg, micb_en, ret = 0; + int cur_vout_ctl, req_vout_ctl, micb_reg, micb_en; switch (micb_num) { case MIC_BIAS_1: @@ -1475,7 +1475,7 @@ static int wcd937x_mbhc_micb_adjust_voltage(struct snd_soc_component *component, default: return -EINVAL; } - mutex_lock(&wcd937x->micb_lock); + guard(mutex)(&wcd937x->micb_lock); /* * If requested micbias voltage is same as current micbias * voltage, then just return. Otherwise, adjust voltage as @@ -1490,15 +1490,11 @@ static int wcd937x_mbhc_micb_adjust_voltage(struct snd_soc_component *component, WCD937X_MICB_VOUT_MASK); req_vout_ctl = wcd_get_micb_vout_ctl_val(component->dev, req_volt); - if (req_vout_ctl < 0) { - ret = -EINVAL; - goto exit; - } + if (req_vout_ctl < 0) + return -EINVAL; - if (cur_vout_ctl == req_vout_ctl) { - ret = 0; - goto exit; - } + if (cur_vout_ctl == req_vout_ctl) + return 0; if (micb_en == WCD937X_MICB_ENABLE) snd_soc_component_write_field(component, micb_reg, @@ -1519,9 +1515,8 @@ static int wcd937x_mbhc_micb_adjust_voltage(struct snd_soc_component *component, */ usleep_range(2000, 2100); } -exit: - mutex_unlock(&wcd937x->micb_lock); - return ret; + + return 0; } static int wcd937x_mbhc_micb_ctrl_threshold_mic(struct snd_soc_component *component,