From: Joerg Roedel <[email protected]> There have been present PTEs which in theory could have made it to the IOMMU TLB. Flush the addresses out on the error path to make sure no stale entries remain.
Signed-off-by: Joerg Roedel <[email protected]> --- drivers/iommu/amd_iommu.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 8ff3331..42c0a81 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -2493,6 +2493,8 @@ out_unmap: dma_ops_domain_unmap(dma_dom, start); } + domain_flush_pages(&dma_dom->domain, address, size); + dma_ops_free_addresses(dma_dom, address, pages); return DMA_ERROR_CODE; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
