tc: propogate errors from tcf_hash_create

Allow tcf_hash_create to return different errors on estimator failure.

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

diff --cc net/sched/act_api.c
Simple merge

diff --cc net/sched/act_gact.c
Simple merge

diff --cc net/sched/act_ipt.c
Simple merge

diff --cc net/sched/act_mirred.c
Simple merge

diff --cc net/sched/act_nat.c
Simple merge

diff --cc net/sched/act_pedit.c
Simple merge

diff --cc net/sched/act_simple.c
Simple merge

diff --cc net/sched/act_skbedit.c
Simple merge