From: Takashi Iwai Date: Fri, 29 Aug 2025 14:52:43 +0000 (+0200) Subject: ALSA: cs423x: Use guard() for mutex locks X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=14ba220697f8603795e82db63f81c5f880102a1f;p=users%2Fhch%2Fmisc.git ALSA: cs423x: Use guard() for mutex locks Replace the manual mutex lock/unlock pairs with guard() for code simplification. Only code refactoring, and no behavior change. Signed-off-by: Takashi Iwai Link: https://patch.msgid.link/20250829145300.5460-4-tiwai@suse.de --- diff --git a/sound/isa/cs423x/cs4236_lib.c b/sound/isa/cs423x/cs4236_lib.c index eaaf39aae526..bf5b0ffb9273 100644 --- a/sound/isa/cs423x/cs4236_lib.c +++ b/sound/isa/cs423x/cs4236_lib.c @@ -956,7 +956,7 @@ static int snd_cs4236_put_iec958_switch(struct snd_kcontrol *kcontrol, struct sn enable = ucontrol->value.integer.value[0] & 1; - mutex_lock(&chip->mce_mutex); + guard(mutex)(&chip->mce_mutex); snd_wss_mce_up(chip); spin_lock_irqsave(&chip->reg_lock, flags); val = (chip->image[CS4231_ALT_FEATURE_1] & ~0x0e) | (0<<2) | (enable << 1); @@ -969,7 +969,6 @@ static int snd_cs4236_put_iec958_switch(struct snd_kcontrol *kcontrol, struct sn snd_cs4236_ctrl_out(chip, 4, val); spin_unlock_irqrestore(&chip->reg_lock, flags); snd_wss_mce_down(chip); - mutex_unlock(&chip->mce_mutex); #if 0 dev_dbg(chip->card->dev,