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a=openpgp; fpr=9BD07E0E0C51F8D59677B7541B93437D3B41629B Simplify error handling with guard(mutex), which allows to drop local 'ret' variable and to directly return instead of jumping. Signed-off-by: Krzysztof Kozlowski --- sound/soc/codecs/wcd937x.c | 24 +++++++++++------------- 1 file changed, 11 insertions(+), 13 deletions(-) diff --git a/sound/soc/codecs/wcd937x.c b/sound/soc/codecs/wcd937x.c index af296b77a723..59d2a5da9854 100644 --- a/sound/soc/codecs/wcd937x.c +++ b/sound/soc/codecs/wcd937x.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0-only // Copyright (c) 2023-2024 Qualcomm Innovation Center, Inc. All rights res= erved. =20 +#include #include #include #include @@ -1440,7 +1441,7 @@ static int wcd937x_mbhc_micb_adjust_voltage(struct sn= d_soc_component *component, int req_volt, int micb_num) { struct wcd937x_priv *wcd937x =3D snd_soc_component_get_drvdata(component); - int cur_vout_ctl, req_vout_ctl, micb_reg, micb_en, ret =3D 0; + int cur_vout_ctl, req_vout_ctl, micb_reg, micb_en; =20 switch (micb_num) { case MIC_BIAS_1: @@ -1455,7 +1456,9 @@ static int wcd937x_mbhc_micb_adjust_voltage(struct sn= d_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 @@ -1470,15 +1473,11 @@ static int wcd937x_mbhc_micb_adjust_voltage(struct = snd_soc_component *component, WCD937X_MICB_VOUT_MASK); =20 req_vout_ctl =3D wcd937x_get_micb_vout_ctl_val(req_volt); - if (req_vout_ctl < 0) { - ret =3D -EINVAL; - goto exit; - } + if (req_vout_ctl < 0) + return -EINVAL; =20 - if (cur_vout_ctl =3D=3D req_vout_ctl) { - ret =3D 0; - goto exit; - } + if (cur_vout_ctl =3D=3D req_vout_ctl) + return 0; =20 if (micb_en =3D=3D WCD937X_MICB_ENABLE) snd_soc_component_write_field(component, micb_reg, @@ -1499,9 +1498,8 @@ static int wcd937x_mbhc_micb_adjust_voltage(struct sn= d_soc_component *component, */ usleep_range(2000, 2100); } -exit: - mutex_unlock(&wcd937x->micb_lock); - return ret; + + return 0; } =20 static int wcd937x_mbhc_micb_ctrl_threshold_mic(struct snd_soc_component *= component, --=20 2.43.0