For USB devices it's not necessary to allocate physically contiguous buffers.
Signed-off-by: Antonio Ospite ao2@amarulasolutions.com --- sound/usb/6fire/pcm.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-)
diff --git a/sound/usb/6fire/pcm.c b/sound/usb/6fire/pcm.c index 40dd50a..c5b9cac 100644 --- a/sound/usb/6fire/pcm.c +++ b/sound/usb/6fire/pcm.c @@ -450,13 +450,13 @@ static int usb6fire_pcm_close(struct snd_pcm_substream *alsa_sub) static int usb6fire_pcm_hw_params(struct snd_pcm_substream *alsa_sub, struct snd_pcm_hw_params *hw_params) { - return snd_pcm_lib_malloc_pages(alsa_sub, - params_buffer_bytes(hw_params)); + return snd_pcm_lib_alloc_vmalloc_buffer(alsa_sub, + params_buffer_bytes(hw_params)); }
static int usb6fire_pcm_hw_free(struct snd_pcm_substream *alsa_sub) { - return snd_pcm_lib_free_pages(alsa_sub); + return snd_pcm_lib_free_vmalloc_buffer(alsa_sub); }
static int usb6fire_pcm_prepare(struct snd_pcm_substream *alsa_sub) @@ -560,6 +560,8 @@ static struct snd_pcm_ops pcm_ops = { .prepare = usb6fire_pcm_prepare, .trigger = usb6fire_pcm_trigger, .pointer = usb6fire_pcm_pointer, + .page = snd_pcm_lib_get_vmalloc_page, + .mmap = snd_pcm_lib_mmap_vmalloc, };
static void usb6fire_pcm_init_urb(struct pcm_urb *urb, @@ -622,10 +624,6 @@ int usb6fire_pcm_init(struct sfire_chip *chip) snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &pcm_ops); snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &pcm_ops);
- ret = snd_pcm_lib_preallocate_pages_for_all(pcm, - SNDRV_DMA_TYPE_CONTINUOUS, - snd_dma_continuous_data(GFP_KERNEL), - MAX_BUFSIZE, MAX_BUFSIZE); if (ret) { kfree(rt); snd_printk(KERN_ERR PREFIX