[PATCH 13/14] netfilter: nf_tables: use the right index from flowtable error path

[Pablo Neira Ayuso]

Use the right loop index, not the number of devices in the array that we
need to remove, the following message uncovered the problem:

[ 5437.044119] hook not found, pf 5 num 0
[ 5437.044140] WARNING: CPU: 2 PID: 24983 at net/netfilter/core.c:376 
__nf_unregister_net_hook+0x250/0x280

Signed-off-by: Pablo Neira Ayuso <pa...@netfilter.org>
---
 net/netfilter/nf_tables_api.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 2b5aa78979db..558593e6a0a3 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -5136,7 +5136,7 @@ static int nf_tables_newflowtable(struct net *net, struct 
sock *nlsk,
        i = flowtable->ops_len;
 err4:
        for (k = i - 1; k >= 0; k--)
-               nf_unregister_net_hook(net, &flowtable->ops[i]);
+               nf_unregister_net_hook(net, &flowtable->ops[k]);
 
        kfree(flowtable->ops);
 err3:
-- 
2.11.0