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author | Linus Torvalds <torvalds@linux-foundation.org> | 2024-03-14 11:10:43 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2024-03-14 11:10:43 -0700 |
commit | fe46a7dd189e25604716c03576d05ac8a5209743 (patch) | |
tree | de7572a9f41bb91e570dce1053283e56d1efdd94 /sound/core/control_led.c | |
parent | 705c1da8fa4816fb0159b5602fef1df5946a3ee2 (diff) | |
parent | a39d51ff1f52cd0b6fe7d379ac93bd8b4237d1b7 (diff) | |
download | linux-stable-fe46a7dd189e25604716c03576d05ac8a5209743.tar.gz linux-stable-fe46a7dd189e25604716c03576d05ac8a5209743.tar.bz2 linux-stable-fe46a7dd189e25604716c03576d05ac8a5209743.zip |
Merge tag 'sound-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"This was a relatively calm development cycle. Most of changes are
rather small device-specific fixes and enhancements. The only
significant changes in ALSA core are code refactoring with the recent
cleanup infrastructure, which should bring no functionality changes.
Some highlights below:
Core:
- Lots of cleanups in ALSA core code with automatic kfree cleanup and
locking guard macros
- New ALSA core kunit test
ASoC:
- SoundWire support for AMD ACP 6.3 systems
- Support for reporting version information for AVS firmware
- Support DSPless mode for Intel Soundwire systems
- Support for configuring CS35L56 amplifiers using EFI calibration
data
- Log which component is being operated on as part of power
management trace events.
- Support for Microchip SAM9x7, NXP i.MX95 and Qualcomm WCD939x
HD- and USB-audio:
- More Cirrus HD-audio codec support
- TAS2781 HD-audio codec fixes
- Scarlett2 mixer fixes
Others:
- Enhancement of virtio driver for audio control supports
- Cleanups of legacy PM code with new macros
- Firewire sound updates"
* tag 'sound-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (307 commits)
ALSA: usb-audio: Stop parsing channels bits when all channels are found.
ALSA: hda/tas2781: remove unnecessary runtime_pm calls
ALSA: hda/realtek - ALC236 fix volume mute & mic mute LED on some HP models
ALSA: aaci: Delete unused variable in aaci_do_suspend
ALSA: scarlett2: Fix Scarlett 4th Gen input gain range again
ALSA: scarlett2: Fix Scarlett 4th Gen input gain range
ALSA: scarlett2: Fix Scarlett 4th Gen autogain status values
ALSA: scarlett2: Fix Scarlett 4th Gen 4i4 low-voltage detection
ALSA: hda/tas2781: restore power state after system_resume
ALSA: hda/tas2781: do not call pm_runtime_force_* in system_resume/suspend
ALSA: hda/tas2781: do not reset cur_* values in runtime_suspend
ALSA: hda/tas2781: add lock to system_suspend
ALSA: hda/tas2781: use dev_dbg in system_resume
ALSA: hda/realtek: fix ALC285 issues on HP Envy x360 laptops
platform/x86: serial-multi-instantiate: Add support for CS35L54 and CS35L57
ALSA: hda: cs35l56: Add support for CS35L54 and CS35L57
ASoC: cs35l56: Add support for CS35L54 and CS35L57
ASoC: Intel: catpt: Carefully use PCI bitwise constants
ALSA: hda: hda_component: Include sound/hda_codec.h
ALSA: hda: hda_component: Add missing #include guards
...
Diffstat (limited to 'sound/core/control_led.c')
-rw-r--r-- | sound/core/control_led.c | 150 |
1 files changed, 65 insertions, 85 deletions
diff --git a/sound/core/control_led.c b/sound/core/control_led.c index a78eb48927c7..3d37e9fa7b9c 100644 --- a/sound/core/control_led.c +++ b/sound/core/control_led.c @@ -147,29 +147,27 @@ static void snd_ctl_led_set_state(struct snd_card *card, unsigned int access, return; route = -1; found = false; - mutex_lock(&snd_ctl_led_mutex); - /* the card may not be registered (active) at this point */ - if (card && !snd_ctl_led_card_valid[card->number]) { - mutex_unlock(&snd_ctl_led_mutex); - return; - } - list_for_each_entry(lctl, &led->controls, list) { - if (lctl->kctl == kctl && lctl->index_offset == ioff) - found = true; - UPDATE_ROUTE(route, snd_ctl_led_get(lctl)); - } - if (!found && kctl && card) { - lctl = kzalloc(sizeof(*lctl), GFP_KERNEL); - if (lctl) { - lctl->card = card; - lctl->access = access; - lctl->kctl = kctl; - lctl->index_offset = ioff; - list_add(&lctl->list, &led->controls); + scoped_guard(mutex, &snd_ctl_led_mutex) { + /* the card may not be registered (active) at this point */ + if (card && !snd_ctl_led_card_valid[card->number]) + return; + list_for_each_entry(lctl, &led->controls, list) { + if (lctl->kctl == kctl && lctl->index_offset == ioff) + found = true; UPDATE_ROUTE(route, snd_ctl_led_get(lctl)); } + if (!found && kctl && card) { + lctl = kzalloc(sizeof(*lctl), GFP_KERNEL); + if (lctl) { + lctl->card = card; + lctl->access = access; + lctl->kctl = kctl; + lctl->index_offset = ioff; + list_add(&lctl->list, &led->controls); + UPDATE_ROUTE(route, snd_ctl_led_get(lctl)); + } + } } - mutex_unlock(&snd_ctl_led_mutex); switch (led->mode) { case MODE_OFF: route = 1; break; case MODE_ON: route = 0; break; @@ -201,14 +199,13 @@ static unsigned int snd_ctl_led_remove(struct snd_kcontrol *kctl, unsigned int i struct snd_ctl_led_ctl *lctl; unsigned int ret = 0; - mutex_lock(&snd_ctl_led_mutex); + guard(mutex)(&snd_ctl_led_mutex); lctl = snd_ctl_led_find(kctl, ioff); if (lctl && (access == 0 || access != lctl->access)) { ret = lctl->access; list_del(&lctl->list); kfree(lctl); } - mutex_unlock(&snd_ctl_led_mutex); return ret; } @@ -239,44 +236,36 @@ static void snd_ctl_led_notify(struct snd_card *card, unsigned int mask, } } +DEFINE_FREE(snd_card_unref, struct snd_card *, if (_T) snd_card_unref(_T)) + static int snd_ctl_led_set_id(int card_number, struct snd_ctl_elem_id *id, unsigned int group, bool set) { - struct snd_card *card; + struct snd_card *card __free(snd_card_unref) = NULL; struct snd_kcontrol *kctl; struct snd_kcontrol_volatile *vd; unsigned int ioff, access, new_access; - int err = 0; card = snd_card_ref(card_number); - if (card) { - down_write(&card->controls_rwsem); - kctl = snd_ctl_find_id_locked(card, id); - if (kctl) { - ioff = snd_ctl_get_ioff(kctl, id); - vd = &kctl->vd[ioff]; - access = vd->access & SNDRV_CTL_ELEM_ACCESS_LED_MASK; - if (access != 0 && access != group_to_access(group)) { - err = -EXDEV; - goto unlock; - } - new_access = vd->access & ~SNDRV_CTL_ELEM_ACCESS_LED_MASK; - if (set) - new_access |= group_to_access(group); - if (new_access != vd->access) { - vd->access = new_access; - snd_ctl_led_notify(card, SNDRV_CTL_EVENT_MASK_INFO, kctl, ioff); - } - } else { - err = -ENOENT; - } -unlock: - up_write(&card->controls_rwsem); - snd_card_unref(card); - } else { - err = -ENXIO; + if (!card) + return -ENXIO; + guard(rwsem_write)(&card->controls_rwsem); + kctl = snd_ctl_find_id_locked(card, id); + if (!kctl) + return -ENOENT; + ioff = snd_ctl_get_ioff(kctl, id); + vd = &kctl->vd[ioff]; + access = vd->access & SNDRV_CTL_ELEM_ACCESS_LED_MASK; + if (access != 0 && access != group_to_access(group)) + return -EXDEV; + new_access = vd->access & ~SNDRV_CTL_ELEM_ACCESS_LED_MASK; + if (set) + new_access |= group_to_access(group); + if (new_access != vd->access) { + vd->access = new_access; + snd_ctl_led_notify(card, SNDRV_CTL_EVENT_MASK_INFO, kctl, ioff); } - return err; + return 0; } static void snd_ctl_led_refresh(void) @@ -312,7 +301,7 @@ repeat: static int snd_ctl_led_reset(int card_number, unsigned int group) { - struct snd_card *card; + struct snd_card *card __free(snd_card_unref) = NULL; struct snd_ctl_led *led; struct snd_ctl_led_ctl *lctl; struct snd_kcontrol_volatile *vd; @@ -322,26 +311,22 @@ static int snd_ctl_led_reset(int card_number, unsigned int group) if (!card) return -ENXIO; - mutex_lock(&snd_ctl_led_mutex); - if (!snd_ctl_led_card_valid[card_number]) { - mutex_unlock(&snd_ctl_led_mutex); - snd_card_unref(card); - return -ENXIO; - } - led = &snd_ctl_leds[group]; + scoped_guard(mutex, &snd_ctl_led_mutex) { + if (!snd_ctl_led_card_valid[card_number]) + return -ENXIO; + led = &snd_ctl_leds[group]; repeat: - list_for_each_entry(lctl, &led->controls, list) - if (lctl->card == card) { - vd = &lctl->kctl->vd[lctl->index_offset]; - vd->access &= ~group_to_access(group); - snd_ctl_led_ctl_destroy(lctl); - change = true; - goto repeat; - } - mutex_unlock(&snd_ctl_led_mutex); + list_for_each_entry(lctl, &led->controls, list) + if (lctl->card == card) { + vd = &lctl->kctl->vd[lctl->index_offset]; + vd->access &= ~group_to_access(group); + snd_ctl_led_ctl_destroy(lctl); + change = true; + goto repeat; + } + } if (change) snd_ctl_led_set_state(NULL, group_to_access(group), NULL, 0); - snd_card_unref(card); return 0; } @@ -353,9 +338,8 @@ static void snd_ctl_led_register(struct snd_card *card) if (snd_BUG_ON(card->number < 0 || card->number >= ARRAY_SIZE(snd_ctl_led_card_valid))) return; - mutex_lock(&snd_ctl_led_mutex); - snd_ctl_led_card_valid[card->number] = true; - mutex_unlock(&snd_ctl_led_mutex); + scoped_guard(mutex, &snd_ctl_led_mutex) + snd_ctl_led_card_valid[card->number] = true; /* the register callback is already called with held card->controls_rwsem */ list_for_each_entry(kctl, &card->controls, list) for (ioff = 0; ioff < kctl->count; ioff++) @@ -367,10 +351,10 @@ static void snd_ctl_led_register(struct snd_card *card) static void snd_ctl_led_disconnect(struct snd_card *card) { snd_ctl_led_sysfs_remove(card); - mutex_lock(&snd_ctl_led_mutex); - snd_ctl_led_card_valid[card->number] = false; - snd_ctl_led_clean(card); - mutex_unlock(&snd_ctl_led_mutex); + scoped_guard(mutex, &snd_ctl_led_mutex) { + snd_ctl_led_card_valid[card->number] = false; + snd_ctl_led_clean(card); + } snd_ctl_led_refresh(); } @@ -430,9 +414,8 @@ static ssize_t mode_store(struct device *dev, else return count; - mutex_lock(&snd_ctl_led_mutex); - led->mode = mode; - mutex_unlock(&snd_ctl_led_mutex); + scoped_guard(mutex, &snd_ctl_led_mutex) + led->mode = mode; snd_ctl_led_set_state(NULL, group_to_access(led->group), NULL, 0); return count; @@ -615,15 +598,15 @@ static ssize_t list_show(struct device *dev, struct device_attribute *attr, char *buf) { struct snd_ctl_led_card *led_card = container_of(dev, struct snd_ctl_led_card, dev); - struct snd_card *card; + struct snd_card *card __free(snd_card_unref) = NULL; struct snd_ctl_led_ctl *lctl; size_t l = 0; card = snd_card_ref(led_card->number); if (!card) return -ENXIO; - down_read(&card->controls_rwsem); - mutex_lock(&snd_ctl_led_mutex); + guard(rwsem_read)(&card->controls_rwsem); + guard(mutex)(&snd_ctl_led_mutex); if (snd_ctl_led_card_valid[led_card->number]) { list_for_each_entry(lctl, &led_card->led->controls, list) { if (lctl->card != card) @@ -634,9 +617,6 @@ static ssize_t list_show(struct device *dev, lctl->kctl->id.numid + lctl->index_offset); } } - mutex_unlock(&snd_ctl_led_mutex); - up_read(&card->controls_rwsem); - snd_card_unref(card); return l; } |