In tipc_conn_sendmsg(), we first queue the request to the outqueue
followed by the connection state check. If the connection is not
connected, we should not queue this message.
In this commit, we reject the messages if the connection state is
not CF_CONNECTED.
Signed-off-by: Parthasarathy Bhuvaragan <parthasarathy.bhuvara...@ericsson.com>
---
net/tipc/server.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/net/tipc/server.c b/net/tipc/server.c
index e206b8fb826f..fa54a2760ee0 100644
--- a/net/tipc/server.c
+++ b/net/tipc/server.c
@@ -451,6 +451,11 @@ int tipc_conn_sendmsg(struct tipc_server *s, int conid,
if (!con)
return -EINVAL;
+ if (!test_bit(CF_CONNECTED, &con->flags)) {
+ conn_put(con);
+ return 0;
+ }
+
e = tipc_alloc_entry(data, len);
if (!e) {
conn_put(con);
@@ -464,12 +469,8 @@ int tipc_conn_sendmsg(struct tipc_server *s, int conid,
list_add_tail(&e->list, &con->outqueue);
spin_unlock_bh(&con->outqueue_lock);
- if (test_bit(CF_CONNECTED, &con->flags)) {
- if (!queue_work(s->send_wq, &con->swork))
- conn_put(con);
- } else {
+ if (!queue_work(s->send_wq, &con->swork))
conn_put(con);
- }
return 0;
}
@@ -493,7 +494,7 @@ static void tipc_send_to_sock(struct tipc_conn *con)
int ret;
spin_lock_bh(&con->outqueue_lock);
- while (1) {
+ while (test_bit(CF_CONNECTED, &con->flags)) {
e = list_entry(con->outqueue.next, struct outqueue_entry,
list);
if ((struct list_head *) e == &con->outqueue)
--
2.1.4
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