tree 6857b8e1dac8847855eb4baaf3632f55035369a7
parent fac6da5b7a1b9779ba124ce92314d02378892855
author FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> 1270417218 +0000
committer David S. Miller <davem@davemloft.net> 1270699166 -0700

benet: fix the misusage of zero dma address

benet driver wrongly assumes that zero is an invalid dma address
(calls dma_unmap_page for only non zero dma addresses). Zero is a
valid dma address on some architectures. The dma length can be used
here.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>