sky2: hand receive DMA mapping failures

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If receive buffer mapping failed, then it was possible to get
stuck with unmapped receive buffer in DMA ring.

This would be an extremely rare condition because the driver had just
released the map for the last receive so it should be able to get
another map again (in soft-irq).

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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stephen hemminger 2010-02-01 13:45:41 +00:00 • committed by David S. Miller

parent 1621e09402

commit 3fbd9187d0

1 changed files with 42 additions and 19 deletions

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61

drivers/net/sky2.c

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