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-rw-r--r--net/sctp/output.c21
1 files changed, 20 insertions, 1 deletions
diff --git a/net/sctp/output.c b/net/sctp/output.c
index 838e18b4d7ea..be50aa234dcd 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -364,6 +364,25 @@ finish:
return retval;
}
+static void sctp_packet_release_owner(struct sk_buff *skb)
+{
+ sk_free(skb->sk);
+}
+
+static void sctp_packet_set_owner_w(struct sk_buff *skb, struct sock *sk)
+{
+ skb_orphan(skb);
+ skb->sk = sk;
+ skb->destructor = sctp_packet_release_owner;
+
+ /*
+ * The data chunks have already been accounted for in sctp_sendmsg(),
+ * therefore only reserve a single byte to keep socket around until
+ * the packet has been transmitted.
+ */
+ atomic_inc(&sk->sk_wmem_alloc);
+}
+
/* All packets are sent to the network through this function from
* sctp_outq_tail().
*
@@ -405,7 +424,7 @@ int sctp_packet_transmit(struct sctp_packet *packet)
/* Set the owning socket so that we know where to get the
* destination IP address.
*/
- skb_set_owner_w(nskb, sk);
+ sctp_packet_set_owner_w(nskb, sk);
if (!sctp_transport_dst_check(tp)) {
sctp_transport_route(tp, NULL, sctp_sk(sk));