With the recent change in ALSA PCM core, the whole open-coded vmalloc buffer handling in this driver can be dropped by replacing with the managed buffer allocation.
Cc: Hans Verkuil hverkuil-cisco@xs4all.nl Cc: Mauro Carvalho Chehab mchehab@kernel.org Signed-off-by: Takashi Iwai tiwai@suse.de --- drivers/media/usb/go7007/snd-go7007.c | 24 +++--------------------- 1 file changed, 3 insertions(+), 21 deletions(-)
diff --git a/drivers/media/usb/go7007/snd-go7007.c b/drivers/media/usb/go7007/snd-go7007.c index b05fa227ffb2..40dbf081ef6b 100644 --- a/drivers/media/usb/go7007/snd-go7007.c +++ b/drivers/media/usb/go7007/snd-go7007.c @@ -9,7 +9,6 @@ #include <linux/spinlock.h> #include <linux/delay.h> #include <linux/sched.h> -#include <linux/vmalloc.h> #include <linux/time.h> #include <linux/mm.h> #include <linux/i2c.h> @@ -100,16 +99,7 @@ static int go7007_snd_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *hw_params) { struct go7007 *go = snd_pcm_substream_chip(substream); - unsigned int bytes; - - bytes = params_buffer_bytes(hw_params); - if (substream->runtime->dma_bytes > 0) - vfree(substream->runtime->dma_area); - substream->runtime->dma_bytes = 0; - substream->runtime->dma_area = vmalloc(bytes); - if (substream->runtime->dma_area == NULL) - return -ENOMEM; - substream->runtime->dma_bytes = bytes; + go->audio_deliver = parse_audio_stream_data; return 0; } @@ -119,9 +109,6 @@ static int go7007_snd_hw_free(struct snd_pcm_substream *substream) struct go7007 *go = snd_pcm_substream_chip(substream);
go->audio_deliver = NULL; - if (substream->runtime->dma_bytes > 0) - vfree(substream->runtime->dma_area); - substream->runtime->dma_bytes = 0; return 0; }
@@ -185,12 +172,6 @@ static snd_pcm_uframes_t go7007_snd_pcm_pointer(struct snd_pcm_substream *substr return gosnd->hw_ptr; }
-static struct page *go7007_snd_pcm_page(struct snd_pcm_substream *substream, - unsigned long offset) -{ - return vmalloc_to_page(substream->runtime->dma_area + offset); -} - static const struct snd_pcm_ops go7007_snd_capture_ops = { .open = go7007_snd_capture_open, .close = go7007_snd_capture_close, @@ -200,7 +181,6 @@ static const struct snd_pcm_ops go7007_snd_capture_ops = { .prepare = go7007_snd_pcm_prepare, .trigger = go7007_snd_pcm_trigger, .pointer = go7007_snd_pcm_pointer, - .page = go7007_snd_pcm_page, };
static int go7007_snd_free(struct snd_device *device) @@ -260,6 +240,8 @@ int go7007_snd_init(struct go7007 *go) gosnd->pcm->private_data = go; snd_pcm_set_ops(gosnd->pcm, SNDRV_PCM_STREAM_CAPTURE, &go7007_snd_capture_ops); + snd_pcm_set_managed_buffer_all(gosnd->pcm, SNDRV_DMA_TYPE_VMALLOC, + NULL, 0, 0);
ret = snd_card_register(gosnd->card); if (ret < 0) {