diff options
| author | Cong Wang <amwang@redhat.com> | 2013-01-22 21:09:50 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-01-28 00:15:27 -0500 |
| commit | cec771d646d6c9a6f123b50e132ab142342dcb97 (patch) | |
| tree | d0591d47af01fb210a16635ff316e77161c5ec3a /net/decnet/af_decnet.c | |
| parent | 78fb2de711ec28997bf38bcf3e48e108e907be77 (diff) | |
| download | linux-cec771d646d6c9a6f123b50e132ab142342dcb97.tar.bz2 | |
decnet: use correct RCU API to deref sk_dst_cache field
sock->sk_dst_cache is protected by RCU, therefore we should
use __sk_dst_get() to deref it once we lock the sock.
This fixes several sparse warnings.
Cc: linux-decnet-user@lists.sourceforge.net
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/decnet/af_decnet.c')
| -rw-r--r-- | net/decnet/af_decnet.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c index 307c322d53bb..64d9843f9e04 100644 --- a/net/decnet/af_decnet.c +++ b/net/decnet/af_decnet.c @@ -909,6 +909,7 @@ static int __dn_connect(struct sock *sk, struct sockaddr_dn *addr, int addrlen, struct dn_scp *scp = DN_SK(sk); int err = -EISCONN; struct flowidn fld; + struct dst_entry *dst; if (sock->state == SS_CONNECTED) goto out; @@ -955,10 +956,11 @@ static int __dn_connect(struct sock *sk, struct sockaddr_dn *addr, int addrlen, fld.flowidn_proto = DNPROTO_NSP; if (dn_route_output_sock(&sk->sk_dst_cache, &fld, sk, flags) < 0) goto out; - sk->sk_route_caps = sk->sk_dst_cache->dev->features; + dst = __sk_dst_get(sk); + sk->sk_route_caps = dst->dev->features; sock->state = SS_CONNECTING; scp->state = DN_CI; - scp->segsize_loc = dst_metric_advmss(sk->sk_dst_cache); + scp->segsize_loc = dst_metric_advmss(dst); dn_nsp_send_conninit(sk, NSP_CI); err = -EINPROGRESS; |