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ALSA: sis7019: Use guard() for mutex locks

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Replace the manual mutex lock/unlock pairs with guard() for code
simplification.

Only code refactoring, and no behavior change.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250829144342.4290-55-tiwai@suse.de
This commit is contained in:
Takashi Iwai 2025-08-29 16:43:29 +02:00
parent bd6aa020ec
commit e7b99fdddf
1 changed files with 1 additions and 3 deletions
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4
sound/pci/sis7019.c
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@ -902,7 +902,7 @@ static unsigned short sis_ac97_rw(struct sis7019 *sis, int codec, u32 cmd)
/* Get the AC97 semaphore -- software first, so we don't spin
* pounding out IO reads on the hardware semaphore...
*/
mutex_lock(&sis->ac97_mutex);
guard(mutex)(&sis->ac97_mutex);
count = 0xffff;
while ((inw(io + SIS_AC97_SEMA) & SIS_AC97_SEMA_BUSY) && --count)
@ -941,8 +941,6 @@ static unsigned short sis_ac97_rw(struct sis7019 *sis, int codec, u32 cmd)
timeout_sema:
outl(SIS_AC97_SEMA_RELEASE, io + SIS_AC97_SEMA);
timeout:
mutex_unlock(&sis->ac97_mutex);
if (!count) {
dev_err(&sis->pci->dev, "ac97 codec %d timeout cmd 0x%08x\n",
codec, cmd);