RxRPC: do not unlock unheld spinlock in rxrpc_connect_exclusive()
If rx->conn is not NULL, rxrpc_connect_exclusive() does not
acquire the transport's client lock, but it still releases it.
The patch adds locking of the spinlock to this path.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: David Howells <dhowells@redhat.com>
diff --git a/net/rxrpc/ar-connection.c b/net/rxrpc/ar-connection.c
index 4106ca9..7bf5b5b 100644
--- a/net/rxrpc/ar-connection.c
+++ b/net/rxrpc/ar-connection.c
@@ -381,6 +381,8 @@
rxrpc_assign_connection_id(conn);
rx->conn = conn;
+ } else {
+ spin_lock(&trans->client_lock);
}
/* we've got a connection with a free channel and we can now attach the