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Missing critical phys_to_virt in lib/swiotlb.c

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Missing critical phys_to_virt in lib/swiotlb.c

Adds missing call to phys_to_virt() in the
lib/swiotlb.c:swiotlb_sync_sg() function.  Without this change, a kernel
panic will always occur whenever a SWIOTLB bounce buffer from a
scatter-gather list gets synced.  Affected are especially Intel x86_64
machines with more than about 3 GB RAM.

Signed-off-by: David Moore <dcm@acm.org>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
David Moore
2007-02-04 13:39:40 -05:00
committed by Greg Kroah-Hartman
parent 33b440130f
commit e16b67f9a0
1 changed files with 1 additions and 1 deletions
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lib/swiotlb.c
+1 -1
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@@ -750,7 +750,7 @@ swiotlb_sync_sg(struct device *hwdev, struct scatterlist *sg,
for (i = 0; i < nelems; i++, sg++)
if (sg->dma_address != SG_ENT_PHYS_ADDRESS(sg))
sync_single(hwdev, (void *) sg->dma_address,
sync_single(hwdev, phys_to_virt(sg->dma_address),
sg->dma_length, dir, target);
}