netfilter: nf_tables_offload: skip EBUSY on chain update

Do not try to bind a chain again if it exists, otherwise the driver
returns EBUSY.

Fixes: c9626a2cbdb2 ("netfilter: nf_tables: add hardware offload support")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
1 file changed