diff options
| author | Oswald Buddenhagen <oswald.buddenhagen@gmx.de> | 2023-04-28 11:59:40 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2023-05-08 09:25:48 +0200 |
| commit | 37bb927d5bb45b5dafaf9769bbed974e28621654 (patch) | |
| tree | 046430e31e1542853ccf05f371dba74c5cfba150 | |
| parent | 35d1d5824ffe1cfc849aa1694488d779dc79a920 (diff) | |
ALSA: core: update comment on snd_card.controls_rwsem
Since commit 5bbb1ab5bd ("control: use counting semaphore as write lock
for ELEM_WRITE operation"), this has been locking the controls including
their values, not just the list of controls.
Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230428095941.1706278-6-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
| -rw-r--r-- | include/sound/core.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/sound/core.h b/include/sound/core.h index 3edc4ab08774..4ea5f66b59d7 100644 --- a/include/sound/core.h +++ b/include/sound/core.h @@ -98,7 +98,7 @@ struct snd_card { struct device ctl_dev; /* control device */ unsigned int last_numid; /* last used numeric ID */ - struct rw_semaphore controls_rwsem; /* controls list lock */ + struct rw_semaphore controls_rwsem; /* controls lock (list and values) */ rwlock_t ctl_files_rwlock; /* ctl_files list lock */ int controls_count; /* count of all controls */ size_t user_ctl_alloc_size; // current memory allocation by user controls. |