ALSA: bt87x: Use managed buffer allocation (b87ddad2) · Commits · 戴 / test

sound/pci/bt87x.c

+4 −10

Original line number	Diff line number	Diff line
		@@ -452,12 +452,7 @@ static int snd_bt87x_hw_params(struct snd_pcm_substream *substream,
		struct snd_pcm_hw_params *hw_params)
		{
		struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
		int err;

		err = snd_pcm_lib_malloc_pages(substream,
		params_buffer_bytes(hw_params));
		if (err < 0)
		return err;
		return snd_bt87x_create_risc(chip, substream,
		params_periods(hw_params),
		params_period_bytes(hw_params));
		@@ -468,7 +463,6 @@ static int snd_bt87x_hw_free(struct snd_pcm_substream *substream)
		struct snd_bt87x *chip = snd_pcm_substream_chip(substream);

		snd_bt87x_free_risc(chip);
		snd_pcm_lib_free_pages(substream);
		return 0;
		}

		@@ -699,7 +693,7 @@ static int snd_bt87x_pcm(struct snd_bt87x chip, int device, char name)
		pcm->private_data = chip;
		strcpy(pcm->name, name);
		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_bt87x_pcm_ops);
		snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
		snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
		&chip->pci->dev,
		128 * 1024,
		ALIGN(255 * 4092, 1024));