[NETFILTER]: Convert ip_tables matches/targets to centralized error checking

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc net/ipv4/netfilter/ip_nat_rule.c
Simple merge

diff --cc net/ipv4/netfilter/ip_tables.c
Simple merge

diff --cc net/ipv4/netfilter/ipt_CLUSTERIP.c
Simple merge

diff --cc net/ipv4/netfilter/ipt_DSCP.c
Simple merge

diff --cc net/ipv4/netfilter/ipt_ECN.c
Simple merge

diff --cc net/ipv4/netfilter/ipt_LOG.c
Simple merge

diff --cc net/ipv4/netfilter/ipt_MASQUERADE.c
Simple merge

diff --cc net/ipv4/netfilter/ipt_NETMAP.c
Simple merge

diff --cc net/ipv4/netfilter/ipt_REDIRECT.c
Simple merge

diff --cc net/ipv4/netfilter/ipt_REJECT.c
Simple merge

diff --cc net/ipv4/netfilter/ipt_SAME.c
Simple merge

diff --cc net/ipv4/netfilter/ipt_TCPMSS.c
Simple merge

diff --cc net/ipv4/netfilter/ipt_TOS.c
Simple merge

diff --cc net/ipv4/netfilter/ipt_TTL.c
Simple merge

diff --cc net/ipv4/netfilter/ipt_ULOG.c
Simple merge

diff --cc net/ipv4/netfilter/ipt_addrtype.c
Simple merge

diff --cc net/ipv4/netfilter/ipt_ah.c
Simple merge

diff --cc net/ipv4/netfilter/ipt_dscp.c
Simple merge

diff --cc net/ipv4/netfilter/ipt_ecn.c
Simple merge

diff --cc net/ipv4/netfilter/ipt_esp.c
Simple merge

diff --cc net/ipv4/netfilter/ipt_hashlimit.c
Simple merge

diff --cc net/ipv4/netfilter/ipt_iprange.c
Simple merge

diff --cc net/ipv4/netfilter/ipt_multiport.c
Simple merge

diff --cc net/ipv4/netfilter/ipt_owner.c
Simple merge

diff --cc net/ipv4/netfilter/ipt_policy.c
Simple merge

diff --cc net/ipv4/netfilter/ipt_recent.c
Simple merge

diff --cc net/ipv4/netfilter/ipt_tos.c
Simple merge

diff --cc net/ipv4/netfilter/ipt_ttl.c
Simple merge