[PATCH 4/5] ASoC: uniphier: Fix reference to PCM buffer address

Takashi Iwai tiwai at suse.de
Wed Jul 28 13:23:52 CEST 2021


Along with the transition to the managed PCM buffers, the driver now
accepts the dynamically allocated buffer, while it still kept the
reference to the old preallocated buffer address.  This patch corrects
to the right reference via runtime->dma_addr.

(Although this might have been already buggy before the cleanup with
the managed buffer, let's put Fixes tag to point that; it's a corner
case, after all.)

Fixes: d55894bc2763 ("ASoC: uniphier: Use managed buffer allocation")
Cc: <stable at vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai at suse.de>
---
 sound/soc/uniphier/aio-dma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/uniphier/aio-dma.c b/sound/soc/uniphier/aio-dma.c
index 3c1628a3a1ac..3d9736e7381f 100644
--- a/sound/soc/uniphier/aio-dma.c
+++ b/sound/soc/uniphier/aio-dma.c
@@ -198,7 +198,7 @@ static int uniphier_aiodma_mmap(struct snd_soc_component *component,
 	vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
 
 	return remap_pfn_range(vma, vma->vm_start,
-			       substream->dma_buffer.addr >> PAGE_SHIFT,
+			       substream->runtime->dma_addr >> PAGE_SHIFT,
 			       vma->vm_end - vma->vm_start, vma->vm_page_prot);
 }
 
-- 
2.26.2



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