diff options
author | Takashi Iwai <tiwai@suse.de> | 2024-02-27 09:53:04 +0100 |
---|---|---|
committer | Takashi Iwai <tiwai@suse.de> | 2024-02-28 15:01:22 +0100 |
commit | 650224fe8d5f6dbe6cc5875d14bf80da60dd56f8 (patch) | |
tree | 99d4c2bc6a2272b89e8fc77b92200faf37c27f01 /sound/core/pcm_compat.c | |
parent | dd0da75b9a2768710366a599c9bd70058e67e2ea (diff) |
ALSA: pcm: Use guard() for PCM stream locks
Define guard() usage for PCM stream locking and use it in appropriate
places.
The pair of snd_pcm_stream_lock() and snd_pcm_stream_unlock() can be
presented with guard(pcm_stream_lock) now.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20240227085306.9764-23-tiwai@suse.de
Diffstat (limited to 'sound/core/pcm_compat.c')
-rw-r--r-- | sound/core/pcm_compat.c | 66 |
1 files changed, 32 insertions, 34 deletions
diff --git a/sound/core/pcm_compat.c b/sound/core/pcm_compat.c index ef3c0d177510..a42ec7f5a1da 100644 --- a/sound/core/pcm_compat.c +++ b/sound/core/pcm_compat.c @@ -432,22 +432,22 @@ static int snd_pcm_ioctl_sync_ptr_x32(struct snd_pcm_substream *substream, boundary = recalculate_boundary(runtime); if (!boundary) boundary = 0x7fffffff; - snd_pcm_stream_lock_irq(substream); - /* FIXME: we should consider the boundary for the sync from app */ - if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL)) - control->appl_ptr = scontrol.appl_ptr; - else - scontrol.appl_ptr = control->appl_ptr % boundary; - if (!(sflags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN)) - control->avail_min = scontrol.avail_min; - else - scontrol.avail_min = control->avail_min; - sstatus.state = status->state; - sstatus.hw_ptr = status->hw_ptr % boundary; - sstatus.tstamp = status->tstamp; - sstatus.suspended_state = status->suspended_state; - sstatus.audio_tstamp = status->audio_tstamp; - snd_pcm_stream_unlock_irq(substream); + scoped_guard(pcm_stream_lock_irq, substream) { + /* FIXME: we should consider the boundary for the sync from app */ + if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL)) + control->appl_ptr = scontrol.appl_ptr; + else + scontrol.appl_ptr = control->appl_ptr % boundary; + if (!(sflags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN)) + control->avail_min = scontrol.avail_min; + else + scontrol.avail_min = control->avail_min; + sstatus.state = status->state; + sstatus.hw_ptr = status->hw_ptr % boundary; + sstatus.tstamp = status->tstamp; + sstatus.suspended_state = status->suspended_state; + sstatus.audio_tstamp = status->audio_tstamp; + } if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL)) snd_pcm_dma_buffer_sync(substream, SNDRV_DMA_SYNC_DEVICE); if (put_user(sstatus.state, &src->s.status.state) || @@ -510,26 +510,24 @@ static int snd_pcm_ioctl_sync_ptr_buggy(struct snd_pcm_substream *substream, if (err < 0) return err; } - snd_pcm_stream_lock_irq(substream); - if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_APPL)) { - err = pcm_lib_apply_appl_ptr(substream, sync_cp->appl_ptr); - if (err < 0) { - snd_pcm_stream_unlock_irq(substream); - return err; + scoped_guard(pcm_stream_lock_irq, substream) { + if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_APPL)) { + err = pcm_lib_apply_appl_ptr(substream, sync_cp->appl_ptr); + if (err < 0) + return err; + } else { + sync_cp->appl_ptr = control->appl_ptr; } - } else { - sync_cp->appl_ptr = control->appl_ptr; + if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN)) + control->avail_min = sync_cp->avail_min; + else + sync_cp->avail_min = control->avail_min; + sync_ptr.s.status.state = status->state; + sync_ptr.s.status.hw_ptr = status->hw_ptr; + sync_ptr.s.status.tstamp = status->tstamp; + sync_ptr.s.status.suspended_state = status->suspended_state; + sync_ptr.s.status.audio_tstamp = status->audio_tstamp; } - if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN)) - control->avail_min = sync_cp->avail_min; - else - sync_cp->avail_min = control->avail_min; - sync_ptr.s.status.state = status->state; - sync_ptr.s.status.hw_ptr = status->hw_ptr; - sync_ptr.s.status.tstamp = status->tstamp; - sync_ptr.s.status.suspended_state = status->suspended_state; - sync_ptr.s.status.audio_tstamp = status->audio_tstamp; - snd_pcm_stream_unlock_irq(substream); if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_APPL)) snd_pcm_dma_buffer_sync(substream, SNDRV_DMA_SYNC_DEVICE); if (copy_to_user(_sync_ptr, &sync_ptr, sizeof(sync_ptr))) |