Unverified Commit 54e1bf9f authored by Meng Tang's avatar Meng Tang Committed by Mark Brown
Browse files

ASoC: amd: Fix reference to PCM buffer address 



PCM buffers might be allocated dynamically when the buffer
preallocation failed or a larger buffer is requested, and it's not
guaranteed that substream->dma_buffer points to the actually used
buffer.  The driver needs to refer to substream->runtime->dma_addr
instead for the buffer address.

Fixes: cab396d8 ("ASoC: amd: add ACP5x pcm dma driver ops")
Signed-off-by: default avatarMeng Tang <tangmeng@uniontech.com>
Link: https://lore.kernel.org/r/20220316091303.9745-1-tangmeng@uniontech.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 9531a631

sound/soc/amd/vangogh/acp5x-pcm-dma.c

+1 −1
Original line number Diff line number Diff line
@@ -281,7 +281,7 @@ static int acp5x_dma_hw_params(struct snd_soc_component *component, 
		return -EINVAL;

	}

	size = params_buffer_bytes(params);

	rtd->dma_addr = substream->dma_buffer.addr;

	rtd->dma_addr = substream->runtime->dma_addr;

	rtd->num_pages = (PAGE_ALIGN(size) >> PAGE_SHIFT);

	config_acp5x_dma(rtd, substream->stream);

	return 0;