diff options
| author | Takashi Iwai <tiwai@suse.de> | 2022-02-10 13:33:44 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2022-02-10 13:36:53 +0100 |
| commit | 3e16dc50d77dc3494275a241fac250c94bf45206 (patch) | |
| tree | b296cf26d2dfa803fad63b13adc7406c63f3aeed /sound | |
| parent | 8e1741c658996a16bd096e077dae0da2460a997f (diff) | |
| download | linux-3e16dc50d77dc3494275a241fac250c94bf45206.tar.bz2 | |
ALSA: memalloc: invalidate SG pages before sync
It seems that calling invalidate_kernel_vmap_range() is more correct
to be called before dma_sync_*(), judging from the other thread:
https://lore.kernel.org/all/20220111085958.GA22795@lst.de/
Although this won't matter much in practice, let's fix the call order
for consistency.
Fixes: a25684a95646 ("ALSA: memalloc: Support for non-contiguous page allocation")
Reported-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220210123344.8756-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/core/memalloc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/core/memalloc.c b/sound/core/memalloc.c index f98f694e3ce4..6fd763d4d15b 100644 --- a/sound/core/memalloc.c +++ b/sound/core/memalloc.c @@ -541,9 +541,9 @@ static void snd_dma_noncontig_sync(struct snd_dma_buffer *dmab, if (mode == SNDRV_DMA_SYNC_CPU) { if (dmab->dev.dir == DMA_TO_DEVICE) return; + invalidate_kernel_vmap_range(dmab->area, dmab->bytes); dma_sync_sgtable_for_cpu(dmab->dev.dev, dmab->private_data, dmab->dev.dir); - invalidate_kernel_vmap_range(dmab->area, dmab->bytes); } else { if (dmab->dev.dir == DMA_FROM_DEVICE) return; |