netlink: Reset portid after netlink_insert failure
authorHerbert Xu <herbert@gondor.apana.org.au>
Sat, 16 May 2015 13:50:28 +0000 (21:50 +0800)
committerDavid S. Miller <davem@davemloft.net>
Sat, 16 May 2015 21:08:57 +0000 (17:08 -0400)
commitc0bb07df7d981e4091432754e30c9c720e2c0c78
treef2d676b046893d451555345d93a1bc72af18c2c6
parent1d6057019ee1b0de90697ff10bf84b7028e8bba4
netlink: Reset portid after netlink_insert failure

The commit c5adde9468b0714a051eac7f9666f23eb10b61f7 ("netlink:
eliminate nl_sk_hash_lock") breaks the autobind retry mechanism
because it doesn't reset portid after a failed netlink_insert.

This means that should autobind fail the first time around, then
the socket will be stuck in limbo as it can never be bound again
since it already has a non-zero portid.

Fixes: c5adde9468b0 ("netlink: eliminate nl_sk_hash_lock")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/netlink/af_netlink.c