diff mbox

[1/4] af_iucv: recvmsg problem for SOCK_STREAM sockets

Message ID 20140319065813.285865119@de.ibm.com
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

frank.blaschka@de.ibm.com March 19, 2014, 6:57 a.m. UTC 
From: Ursula Braun <ursula.braun@de.ibm.com>

Commit f9c41a62bba3f3f7ef3541b2a025e3371bcbba97 introduced
a problem for SOCK_STREAM sockets, when only part of the
incoming iucv message is received by user space. In this
case the remaining data of the iucv message is lost.
This patch makes sure an incompletely received iucv message
is queued back to the receive queue.

Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Reported-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
---
 net/iucv/af_iucv.c | 1 +
 1 file changed, 1 insertion(+)


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diff mbox

Patch

diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index c4b7218..a5e0311 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -1382,6 +1382,7 @@  static int iucv_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
 		if (sk->sk_type == SOCK_STREAM) {
 			if (copied < rlen) {
 				IUCV_SKB_CB(skb)->offset = offset + copied;
+				skb_queue_head(&sk->sk_receive_queue, skb);
 				goto done;
 			}
 		}