We already unlocked a few lines earlier here, so we can go directly to
drop without passing through unlock. This was introduced recently in c5d3687f6c ('6lowpan: read data from skb safely').
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>