Subject: [PATCH 1/3] [IrDA] MSG_NOSIGNAL support for IrDA sockets

From: Samuel Ortiz <[email-masked]>
Date: Mon, 27 Aug 2007 01:15:15 +0300

Signed-off-by: Samuel Ortiz <[email-masked]>
---
 net/irda/af_irda.c |   21 ++++++++++++---------
 1 file changed, 12 insertions(+), 9 deletions(-)

Index: net-2.6.24-quilt/net/irda/af_irda.c
===================================================================
--- net-2.6.24-quilt.orig/net/irda/af_irda.c	2007-08-25 02:41:39.000000000 +0300
+++ net-2.6.24-quilt/net/irda/af_irda.c	2007-08-25 02:41:41.000000000 +0300
@@ -1245,18 +1245,17 @@
 	struct sock *sk = sock->sk;
 	struct irda_sock *self;
 	struct sk_buff *skb;
-	int err;
+	int err = -EPIPE;
 
 	IRDA_DEBUG(4, "%s(), len=%zd\n", __FUNCTION__, len);
 
 	/* Note : socket.c set MSG_EOR on SEQPACKET sockets */
-	if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_EOR|MSG_CMSG_COMPAT))
+	if (msg->msg_flags & ~(MSG_DONTWAIT | MSG_EOR | MSG_CMSG_COMPAT |
+			       MSG_NOSIGNAL))
 		return -EINVAL;
 
-	if (sk->sk_shutdown & SEND_SHUTDOWN) {
-		send_sig(SIGPIPE, current, 0);
-		return -EPIPE;
-	}
+	if (sk->sk_shutdown & SEND_SHUTDOWN)
+		goto out_err;
 
 	if (sk->sk_state != TCP_ESTABLISHED)
 		return -ENOTCONN;
@@ -1283,7 +1282,7 @@
 	skb = sock_alloc_send_skb(sk, len + self->max_header_size + 16,
 				  msg->msg_flags & MSG_DONTWAIT, &err);
 	if (!skb)
-		return -ENOBUFS;
+		goto out_err;
 
 	skb_reserve(skb, self->max_header_size + 16);
 	skb_reset_transport_header(skb);
@@ -1291,7 +1290,7 @@
 	err = memcpy_fromiovec(skb_transport_header(skb), msg->msg_iov, len);
 	if (err) {
 		kfree_skb(skb);
-		return err;
+		goto out_err;
 	}
 
 	/*
@@ -1301,10 +1300,14 @@
 	err = irttp_data_request(self->tsap, skb);
 	if (err) {
 		IRDA_DEBUG(0, "%s(), err=%d\n", __FUNCTION__, err);
-		return err;
+		goto out_err;
 	}
 	/* Tell client how much data we actually sent */
 	return len;
+
+ out_err:
+	return sk_stream_error(sk, msg->msg_flags, err);
+
 }
 
 /*

--