Commit Message
From: Alan Cox <alan@linux.intel.com>
The ivtv stream buffers may be for receive or for send but the attached sg
handle is always destined cpu->device. We flush it correctly but the
allocation is wrongly done with the same type as the buffers.
See bug: http://bugzilla.kernel.org/show_bug.cgi?id=13385
(Note this doesn't close the bug - it fixes the ivtv part and in turn the
logging next shows up some rather alarming DMA sg list warnings in libata)
Signed-off-by: Alan Cox <alan@linux.intel.com>
---
drivers/media/video/ivtv/ivtv-queue.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
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@@ -230,7 +230,8 @@ int ivtv_stream_alloc(struct ivtv_stream *s)
return -ENOMEM;
}
if (ivtv_might_use_dma(s)) {
- s->sg_handle = pci_map_single(itv->pdev, s->sg_dma, sizeof(struct ivtv_sg_element), s->dma);
+ s->sg_handle = pci_map_single(itv->pdev, s->sg_dma,
+ sizeof(struct ivtv_sg_element), PCI_DMA_TODEVICE);
ivtv_stream_sync_for_cpu(s);
}