net: add missing READ_ONCE(sk->sk_sndbuf) annotation

In a prior commit, I forgot to change sk_getsockopt()
when reading sk->sk_sndbuf locklessly.

Fixes: e292f05e0df7 ("tcp: annotate sk->sk_sndbuf lockless reads")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/sock.c b/net/core/sock.c
index 264c99c190ac9a550d93b760d78f006b216fcb75..ca43f7a302199724ecf155e3c03add7c964fd3ef 100644 (file)
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1639,7 +1639,7 @@ int sk_getsockopt(struct sock *sk, int level, int optname,
                break;
 
        case SO_SNDBUF:
-               v.val = sk->sk_sndbuf;
+               v.val = READ_ONCE(sk->sk_sndbuf);
                break;
 
        case SO_RCVBUF: