Not able to recieve messages using sock_recvmsg()

-HI All,
-I am not able to recieve messages using sock_recvmsg() -Server running on TCP port in kernel space and client is in ser space. -sending messages to the server, i didn't see any message from client. -but there is no error while connecting to the server
-This is the code i am using
- msg.msg_name = NULL;
-msg.msg_namelen = 0;
-msg.msg_iov = &iov;
-msg.msg_iovlen = 1;
-msg.msg_control = NULL;
-msg.msg_controllen = 0;
-msg.msg_flags = 0
-len = 0
- len = sock_recvmsg(newsock, &msg, (size_t)buf, 0)
- printk( KERN_ALERT "recieved message is %s",buf)
-But not printing the content of buffer.
-Any help in this regard is highly appreciated
-Thanks
-Bhaskar