For USB devices it's not necessary to allocate physically contiguous buffers.
Signed-off-by: Antonio Ospite ao2@amarulasolutions.com --- sound/usb/caiaq/audio.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-)
diff --git a/sound/usb/caiaq/audio.c b/sound/usb/caiaq/audio.c index c191618..7103b09 100644 --- a/sound/usb/caiaq/audio.c +++ b/sound/usb/caiaq/audio.c @@ -183,14 +183,15 @@ static int snd_usb_caiaq_substream_close(struct snd_pcm_substream *substream) static int snd_usb_caiaq_pcm_hw_params(struct snd_pcm_substream *sub, struct snd_pcm_hw_params *hw_params) { - return snd_pcm_lib_malloc_pages(sub, params_buffer_bytes(hw_params)); + return snd_pcm_lib_alloc_vmalloc_buffer(sub, + params_buffer_bytes(hw_params)); }
static int snd_usb_caiaq_pcm_hw_free(struct snd_pcm_substream *sub) { struct snd_usb_caiaqdev *cdev = snd_pcm_substream_chip(sub); deactivate_substream(cdev, sub); - return snd_pcm_lib_free_pages(sub); + return snd_pcm_lib_free_vmalloc_buffer(sub); }
/* this should probably go upstream */ @@ -345,7 +346,9 @@ static struct snd_pcm_ops snd_usb_caiaq_ops = { .hw_free = snd_usb_caiaq_pcm_hw_free, .prepare = snd_usb_caiaq_pcm_prepare, .trigger = snd_usb_caiaq_pcm_trigger, - .pointer = snd_usb_caiaq_pcm_pointer + .pointer = snd_usb_caiaq_pcm_pointer, + .page = snd_pcm_lib_get_vmalloc_page, + .mmap = snd_pcm_lib_mmap_vmalloc, };
static void check_for_elapsed_periods(struct snd_usb_caiaqdev *cdev, @@ -852,11 +855,6 @@ int snd_usb_caiaq_audio_init(struct snd_usb_caiaqdev *cdev) snd_pcm_set_ops(cdev->pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_usb_caiaq_ops);
- snd_pcm_lib_preallocate_pages_for_all(cdev->pcm, - SNDRV_DMA_TYPE_CONTINUOUS, - snd_dma_continuous_data(GFP_KERNEL), - MAX_BUFFER_SIZE, MAX_BUFFER_SIZE); - cdev->data_cb_info = kmalloc(sizeof(struct snd_usb_caiaq_cb_info) * N_URBS, GFP_KERNEL);