net: calxedaxgmac: fix rx ring handling when OOM

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If skb allocation for the rx ring fails repeatedly, we can reach a point
were the ring is empty. In this condition, the driver is out of sync with
the h/w. While this has always been possible, the removal of the skb
recycling seems to have made triggering this problem easier.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Rob Herring 2013-03-28 11:32:44 +00:00 • committed by David S. Miller

parent a561cf7edf

commit dc574f1d52

1 changed files with 3 additions and 0 deletions

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drivers/net/ethernet/calxeda/xgmac.c

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