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-rw-r--r--net/rxrpc/conn_client.c20
1 files changed, 15 insertions, 5 deletions
diff --git a/net/rxrpc/conn_client.c b/net/rxrpc/conn_client.c
index b2adfa825363..f307a05076e1 100644
--- a/net/rxrpc/conn_client.c
+++ b/net/rxrpc/conn_client.c
@@ -704,6 +704,7 @@ int rxrpc_connect_call(struct rxrpc_sock *rx,
ret = rxrpc_wait_for_channel(call, gfp);
if (ret < 0) {
+ trace_rxrpc_client(call->conn, ret, rxrpc_client_chan_wait_failed);
rxrpc_disconnect_client_call(call);
goto out;
}
@@ -774,16 +775,22 @@ static void rxrpc_set_client_reap_timer(struct rxrpc_net *rxnet)
*/
void rxrpc_disconnect_client_call(struct rxrpc_call *call)
{
- unsigned int channel = call->cid & RXRPC_CHANNELMASK;
struct rxrpc_connection *conn = call->conn;
- struct rxrpc_channel *chan = &conn->channels[channel];
+ struct rxrpc_channel *chan = NULL;
struct rxrpc_net *rxnet = conn->params.local->rxnet;
+ unsigned int channel = -1;
+ u32 cid;
+ spin_lock(&conn->channel_lock);
+
+ cid = call->cid;
+ if (cid) {
+ channel = cid & RXRPC_CHANNELMASK;
+ chan = &conn->channels[channel];
+ }
trace_rxrpc_client(conn, channel, rxrpc_client_chan_disconnect);
call->conn = NULL;
- spin_lock(&conn->channel_lock);
-
/* Calls that have never actually been assigned a channel can simply be
* discarded. If the conn didn't get used either, it will follow
* immediately unless someone else grabs it in the meantime.
@@ -807,7 +814,10 @@ void rxrpc_disconnect_client_call(struct rxrpc_call *call)
goto out;
}
- ASSERTCMP(rcu_access_pointer(chan->call), ==, call);
+ if (rcu_access_pointer(chan->call) != call) {
+ spin_unlock(&conn->channel_lock);
+ BUG();
+ }
/* If a client call was exposed to the world, we save the result for
* retransmission.