sound: sgio2audio: use vmalloc buffer helper functions
Remove this duplicate of snd_pcm_alloc_vmalloc_buffer and use the
equivalent core functions instead.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/mips/sgio2audio.c b/sound/mips/sgio2audio.c
index f1d9d16..9b486be 100644
--- a/sound/mips/sgio2audio.c
+++ b/sound/mips/sgio2audio.c
@@ -26,7 +26,6 @@
#include <linux/delay.h>
#include <linux/spinlock.h>
#include <linux/gfp.h>
-#include <linux/vmalloc.h>
#include <linux/interrupt.h>
#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
@@ -603,25 +602,14 @@
static int snd_sgio2audio_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
- struct snd_pcm_runtime *runtime = substream->runtime;
- int size = params_buffer_bytes(hw_params);
-
- /* alloc virtual 'dma' area */
- if (runtime->dma_area)
- vfree(runtime->dma_area);
- runtime->dma_area = vmalloc_user(size);
- if (runtime->dma_area == NULL)
- return -ENOMEM;
- runtime->dma_bytes = size;
- return 0;
+ return snd_pcm_lib_alloc_vmalloc_buffer(substream,
+ params_buffer_bytes(hw_params));
}
/* hw_free callback */
static int snd_sgio2audio_pcm_hw_free(struct snd_pcm_substream *substream)
{
- vfree(substream->runtime->dma_area);
- substream->runtime->dma_area = NULL;
- return 0;
+ return snd_pcm_lib_free_vmalloc_buffer(substream);
}
/* prepare callback */
@@ -692,13 +680,6 @@
chip->channel[chan->idx].pos);
}
-/* get the physical page pointer on the given offset */
-static struct page *snd_sgio2audio_page(struct snd_pcm_substream *substream,
- unsigned long offset)
-{
- return vmalloc_to_page(substream->runtime->dma_area + offset);
-}
-
/* operators */
static struct snd_pcm_ops snd_sgio2audio_playback1_ops = {
.open = snd_sgio2audio_playback1_open,
@@ -709,7 +690,7 @@
.prepare = snd_sgio2audio_pcm_prepare,
.trigger = snd_sgio2audio_pcm_trigger,
.pointer = snd_sgio2audio_pcm_pointer,
- .page = snd_sgio2audio_page,
+ .page = snd_pcm_lib_get_vmalloc_page,
};
static struct snd_pcm_ops snd_sgio2audio_playback2_ops = {
@@ -721,7 +702,7 @@
.prepare = snd_sgio2audio_pcm_prepare,
.trigger = snd_sgio2audio_pcm_trigger,
.pointer = snd_sgio2audio_pcm_pointer,
- .page = snd_sgio2audio_page,
+ .page = snd_pcm_lib_get_vmalloc_page,
};
static struct snd_pcm_ops snd_sgio2audio_capture_ops = {
@@ -733,7 +714,7 @@
.prepare = snd_sgio2audio_pcm_prepare,
.trigger = snd_sgio2audio_pcm_trigger,
.pointer = snd_sgio2audio_pcm_pointer,
- .page = snd_sgio2audio_page,
+ .page = snd_pcm_lib_get_vmalloc_page,
};
/*