From 29efcd2666b3a465b40aa07ef1f4d79847303e2f Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Thu, 25 May 2006 15:08:59 -0700 Subject: [PATCH] [LLC]: allow datagram recvmsg LLC receive is broken for SOCK_DGRAM. If an application does recv() on a datagram socket and there is no data present, don't return "not connected". Instead, just do normal datagram semantics. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- net/llc/af_llc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c index 7465170a36ca..75c9b1480801 100644 --- a/net/llc/af_llc.c +++ b/net/llc/af_llc.c @@ -674,7 +674,7 @@ static int llc_ui_recvmsg(struct kiocb *iocb, struct socket *sock, lock_sock(sk); copied = -ENOTCONN; - if (sk->sk_state == TCP_LISTEN) + if (unlikely(sk->sk_type == SOCK_STREAM && sk->sk_state == TCP_LISTEN)) goto out; timeo = sock_rcvtimeo(sk, nonblock); @@ -733,7 +733,7 @@ static int llc_ui_recvmsg(struct kiocb *iocb, struct socket *sock, if (sk->sk_shutdown & RCV_SHUTDOWN) break; - if (sk->sk_state == TCP_CLOSE) { + if (sk->sk_type == SOCK_STREAM && sk->sk_state == TCP_CLOSE) { if (!sock_flag(sk, SOCK_DONE)) { /* * This occurs when user tries to read -- 2.20.1