[IPV6]: Remove unused code in ndisc_send_redirect().

[linux-2.6] / net / socket.c

diff --git a/net/socket.c b/net/socket.c
index aeeab388cc3868d36c2906b736c909b16d0cd62a..b6d35cd72a50988e2075683ff757902ec7af6ccc 100644 (file)
--- a/net/socket.c
+++ b/net/socket.c
@@ -701,6 +701,9 @@ static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
 {
        struct socket *sock = file->private_data;
 
+       if (unlikely(!sock->ops->splice_read))
+               return -EINVAL;
+
        return sock->ops->splice_read(sock, ppos, pipe, len, flags);
 }
 
@@ -1070,20 +1073,19 @@ int sock_wake_async(struct socket *sock, int how, int band)
        if (!sock || !sock->fasync_list)
                return -1;
        switch (how) {
-       case 1:
-
+       case SOCK_WAKE_WAITD:
                if (test_bit(SOCK_ASYNC_WAITDATA, &sock->flags))
                        break;
                goto call_kill;
-       case 2:
+       case SOCK_WAKE_SPACE:
                if (!test_and_clear_bit(SOCK_ASYNC_NOSPACE, &sock->flags))
                        break;
                /* fall through */
-       case 0:
+       case SOCK_WAKE_IO:
 call_kill:
                __kill_fasync(sock->fasync_list, SIGIO, band);
                break;
-       case 3:
+       case SOCK_WAKE_URG:
                __kill_fasync(sock->fasync_list, SIGURG, band);
        }
        return 0;
@@ -1366,17 +1368,17 @@ asmlinkage long sys_bind(int fd, struct sockaddr __user *umyaddr, int addrlen)
  *     ready for listening.
  */
 
-int sysctl_somaxconn __read_mostly = SOMAXCONN;
-
 asmlinkage long sys_listen(int fd, int backlog)
 {
        struct socket *sock;
        int err, fput_needed;
+       int somaxconn;
 
        sock = sockfd_lookup_light(fd, &err, &fput_needed);
        if (sock) {
-               if ((unsigned)backlog > sysctl_somaxconn)
-                       backlog = sysctl_somaxconn;
+               somaxconn = sock->sk->sk_net->sysctl_somaxconn;
+               if ((unsigned)backlog > somaxconn)
+                       backlog = somaxconn;
 
                err = security_socket_listen(sock, backlog);
                if (!err)