commit b93da27f5234198433345e40b39ff59797bc6f6e
author Anton Blanchard <anton@samba.org> Wed Sep 07 14:41:04 2011 +0000
committer David S. Miller <davem@davemloft.net> Fri Sep 16 15:26:32 2011 -0400
tree 96152ec145b0e749e1573a624342c27d48a6b190
parent 33a48ab105a75d37021e422a0a3283241099b142

ibmveth: Fix issue with DMA mapping failure

descs[].fields.address is 32bit which truncates any dma mapping
errors so dma_mapping_error() fails to catch it.

Use a dma_addr_t to do the comparison. With this patch I was able
to transfer many gigabytes of data with IOMMU fault injection set
at 10% probability.

Signed-off-by: Anton Blanchard <anton@samba.org>
Cc: <stable@kernel.org> # v2.6.37+
Signed-off-by: David S. Miller <davem@davemloft.net>