linux-phytec-ti

sgi-xp: fix a use after free

Its illegal to dereference skb after dev_kfree_skb(skb)

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Robin Holt <holt@sgi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>