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| author | Takashi Iwai <tiwai@suse.de> | 2019-12-09 10:49:42 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2019-12-11 07:25:24 +0100 |
| commit | 6dd9486ca9b8dde3a91e4c5231b8c83df27ba753 (patch) | |
| tree | fe02c30d6ca5f16ef265f3d0e0fa4f82671b2527 /sound/usb/pcm.c | |
| parent | 3f0c972ad828b5b1a44563c2ceea0f140827013b (diff) | |
| download | linux-stable-6dd9486ca9b8dde3a91e4c5231b8c83df27ba753.tar.gz linux-stable-6dd9486ca9b8dde3a91e4c5231b8c83df27ba753.tar.bz2 linux-stable-6dd9486ca9b8dde3a91e4c5231b8c83df27ba753.zip | |
ALSA: usb-audio: Use managed buffer allocation
Clean up the driver with the new managed buffer allocation API.
The superfluous snd_pcm_lib_malloc_pages() and
snd_pcm_lib_free_pages() calls are dropped.
Link: https://lore.kernel.org/r/20191209094943.14984-71-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/pcm.c')
| -rw-r--r-- | sound/usb/pcm.c | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index 9c8930bb00c8..7caaa04ae546 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -785,11 +785,6 @@ static int snd_usb_hw_params(struct snd_pcm_substream *substream, if (ret) return ret; - ret = snd_pcm_lib_malloc_pages(substream, - params_buffer_bytes(hw_params)); - if (ret < 0) - goto stop_pipeline; - subs->pcm_format = params_format(hw_params); subs->period_bytes = params_period_bytes(hw_params); subs->period_frames = params_period_size(hw_params); @@ -853,7 +848,7 @@ static int snd_usb_hw_free(struct snd_pcm_substream *substream) snd_usb_unlock_shutdown(subs->stream->chip); } - return snd_pcm_lib_free_pages(substream); + return 0; } /* @@ -1803,9 +1798,9 @@ void snd_usb_preallocate_buffer(struct snd_usb_substream *subs) struct device *dev = subs->dev->bus->controller; if (snd_usb_use_vmalloc) - snd_pcm_lib_preallocate_pages(s, SNDRV_DMA_TYPE_VMALLOC, - NULL, 0, 0); + snd_pcm_set_managed_buffer(s, SNDRV_DMA_TYPE_VMALLOC, + NULL, 0, 0); else - snd_pcm_lib_preallocate_pages(s, SNDRV_DMA_TYPE_DEV_SG, - dev, 64*1024, 512*1024); + snd_pcm_set_managed_buffer(s, SNDRV_DMA_TYPE_DEV_SG, + dev, 64*1024, 512*1024); } |