acenic: fix the misusage of zero dma address

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acenic 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>
Signed-off-by: David S. Miller <davem@davemloft.net>

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FUJITA Tomonori 2010-03-31 22:13:05 +00:00 • committed by David S. Miller

parent 6c57990696

commit 07e7de8f7a

1 changed files with 6 additions and 10 deletions

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drivers/net/acenic.c

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