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ALSA: memalloc: Fix dma_need_sync() checks

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dma_need_sync() checks each DMA address.  Fix the incorrect usages
for non-contiguous and non-coherent page allocations.
Fortunately, there are no actual call sites that need manual syncs
yet.

Fixes: a25684a956 ("ALSA: memalloc: Support for non-contiguous page allocation")
Fixes: 73325f60e2 ("ALSA: memalloc: Support for non-coherent page allocation")
Cc: <stable@vger.kernel.org>
Reported-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Link: https://lore.kernel.org/r/20220210123344.8756-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2022-02-10 13:33:43 +01:00
parent 52517d9c0c
commit 8e1741c658
1 changed files with 9 additions and 4 deletions
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13
sound/core/memalloc.c
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@ -511,7 +511,8 @@ static void *snd_dma_noncontig_alloc(struct snd_dma_buffer *dmab, size_t size)
DEFAULT_GFP, 0);
if (!sgt)
return NULL;
dmab->dev.need_sync = dma_need_sync(dmab->dev.dev, dmab->dev.dir);
dmab->dev.need_sync = dma_need_sync(dmab->dev.dev,
sg_dma_address(sgt->sgl));
p = dma_vmap_noncontiguous(dmab->dev.dev, size, sgt);
if (p)
dmab->private_data = sgt;
@ -671,9 +672,13 @@ static const struct snd_malloc_ops snd_dma_sg_wc_ops = {
*/
static void *snd_dma_noncoherent_alloc(struct snd_dma_buffer *dmab, size_t size)
{
dmab->dev.need_sync = dma_need_sync(dmab->dev.dev, dmab->dev.dir);
return dma_alloc_noncoherent(dmab->dev.dev, size, &dmab->addr,
dmab->dev.dir, DEFAULT_GFP);
void *p;
p = dma_alloc_noncoherent(dmab->dev.dev, size, &dmab->addr,
dmab->dev.dir, DEFAULT_GFP);
if (p)
dmab->dev.need_sync = dma_need_sync(dmab->dev.dev, dmab->addr);
return p;
}
static void snd_dma_noncoherent_free(struct snd_dma_buffer *dmab)