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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 From nobody Mon Feb 9 17:26:08 2026 Received: from mail-wr1-f54.google.com (mail-wr1-f54.google.com [209.85.221.54]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D247D18A6C7 for ; 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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/wcd938x.c | 24 +++++++++++------------- 1 file changed, 11 insertions(+), 13 deletions(-) diff --git a/sound/soc/codecs/wcd938x.c b/sound/soc/codecs/wcd938x.c index aa92f1bfc921..15056fc493b7 100644 --- a/sound/soc/codecs/wcd938x.c +++ b/sound/soc/codecs/wcd938x.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0-only // Copyright (c) 2018-2020, The Linux Foundation. All rights reserved. =20 +#include #include #include #include @@ -1992,7 +1993,7 @@ static int wcd938x_mbhc_micb_adjust_voltage(struct sn= d_soc_component *component, int req_volt, int micb_num) { struct wcd938x_priv *wcd938x =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: @@ -2010,7 +2011,9 @@ static int wcd938x_mbhc_micb_adjust_voltage(struct sn= d_soc_component *component, default: return -EINVAL; } - mutex_lock(&wcd938x->micb_lock); + + guard(mutex)(&wcd938x->micb_lock); + /* * If requested micbias voltage is same as current micbias * voltage, then just return. Otherwise, adjust voltage as @@ -2025,15 +2028,11 @@ static int wcd938x_mbhc_micb_adjust_voltage(struct = snd_soc_component *component, WCD938X_MICB_VOUT_MASK); =20 req_vout_ctl =3D wcd938x_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 WCD938X_MICB_ENABLE) snd_soc_component_write_field(component, micb_reg, @@ -2054,9 +2053,8 @@ static int wcd938x_mbhc_micb_adjust_voltage(struct sn= d_soc_component *component, */ usleep_range(2000, 2100); } -exit: - mutex_unlock(&wcd938x->micb_lock); - return ret; + + return 0; } =20 static int wcd938x_mbhc_micb_ctrl_threshold_mic(struct snd_soc_component *= component, --=20 2.43.0 From nobody Mon Feb 9 17:26:08 2026 Received: from mail-wm1-f45.google.com (mail-wm1-f45.google.com [209.85.128.45]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F14371898F3 for ; 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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/wcd939x.c | 21 ++++++++------------- 1 file changed, 8 insertions(+), 13 deletions(-) diff --git a/sound/soc/codecs/wcd939x.c b/sound/soc/codecs/wcd939x.c index 68fc591670dc..a77e4b8b3931 100644 --- a/sound/soc/codecs/wcd939x.c +++ b/sound/soc/codecs/wcd939x.c @@ -5,6 +5,7 @@ * Copyright (c) 2023, Linaro Limited */ =20 +#include #include #include #include @@ -1933,7 +1934,6 @@ static int wcd939x_mbhc_micb_adjust_voltage(struct sn= d_soc_component *component, struct wcd939x_priv *wcd939x =3D snd_soc_component_get_drvdata(component); unsigned int micb_reg, cur_vout_ctl, micb_en; int req_vout_ctl; - int ret =3D 0; =20 switch (micb_num) { case MIC_BIAS_1: @@ -1951,7 +1951,8 @@ static int wcd939x_mbhc_micb_adjust_voltage(struct sn= d_soc_component *component, default: return -EINVAL; } - mutex_lock(&wcd939x->micb_lock); + + guard(mutex)(&wcd939x->micb_lock); =20 /* * If requested micbias voltage is same as current micbias @@ -1967,15 +1968,11 @@ static int wcd939x_mbhc_micb_adjust_voltage(struct = snd_soc_component *component, WCD939X_MICB_VOUT_CTL); =20 req_vout_ctl =3D wcd939x_get_micb_vout_ctl_val(req_volt); - if (req_vout_ctl < 0) { - ret =3D req_vout_ctl; - goto exit; - } + if (req_vout_ctl < 0) + return req_vout_ctl; =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 dev_dbg(component->dev, "%s: micb_num: %d, cur_mv: %d, req_mv: %d, micb_e= n: %d\n", __func__, micb_num, WCD_VOUT_CTL_TO_MICB(cur_vout_ctl), @@ -2000,9 +1997,7 @@ static int wcd939x_mbhc_micb_adjust_voltage(struct sn= d_soc_component *component, usleep_range(2000, 2100); } =20 -exit: - mutex_unlock(&wcd939x->micb_lock); - return ret; + return 0; } =20 static int wcd939x_mbhc_micb_ctrl_threshold_mic(struct snd_soc_component *= component, --=20 2.43.0