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ALSA: hda/intel: Use guard() for mutex locks

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

Only code refactoring, and no behavior change.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250827072916.31933-19-tiwai@suse.de
This commit is contained in:
Takashi Iwai
2025-08-29 11:52:15 +02:00
parent d2a8792b97
commit 59195f13ee
1 changed files with 5 additions and 6 deletions
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sound/hda/controllers/intel.c
+5 -6
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@@ -915,17 +915,17 @@ static void azx_shutdown_chip(struct azx *chip)
static void azx_add_card_list(struct azx *chip)
{
struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
mutex_lock(&card_list_lock);
guard(mutex)(&card_list_lock);
list_add(&hda->list, &card_list);
mutex_unlock(&card_list_lock);
}
static void azx_del_card_list(struct azx *chip)
{
struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
mutex_lock(&card_list_lock);
guard(mutex)(&card_list_lock);
list_del_init(&hda->list);
mutex_unlock(&card_list_lock);
}
/* trigger power-save check at writing parameter */
@@ -942,7 +942,7 @@ static int __maybe_unused param_set_xint(const char *val, const struct kernel_pa
if (pm_blacklist > 0)
return 0;
mutex_lock(&card_list_lock);
guard(mutex)(&card_list_lock);
list_for_each_entry(hda, &card_list, list) {
chip = &hda->chip;
if (!hda->probe_continued || chip->disabled ||
@@ -950,7 +950,6 @@ static int __maybe_unused param_set_xint(const char *val, const struct kernel_pa
continue;
snd_hda_set_power_save(&chip->bus, power_save * 1000);
}
mutex_unlock(&card_list_lock);
return 0;
}