diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c
index c83c3c75d665..9dd160bb16d2 100644
--- a/net/rxrpc/af_rxrpc.c
+++ b/net/rxrpc/af_rxrpc.c
@@ -247,8 +247,8 @@ struct rxrpc_transport *rxrpc_name_to_transport(struct rxrpc_sock *rx,
 
 	/* find a remote transport endpoint from the local one */
 	peer = rxrpc_lookup_peer(rx->local, srx, gfp);
-	if (IS_ERR(peer))
-		return ERR_CAST(peer);
+	if (!peer)
+		return ERR_PTR(-ENOMEM);
 
 	/* find a transport */
 	trans = rxrpc_get_transport(rx->local, peer, gfp);
diff --git a/net/rxrpc/call_accept.c b/net/rxrpc/call_accept.c
index 50136c76ebd1..553b67c144e5 100644
--- a/net/rxrpc/call_accept.c
+++ b/net/rxrpc/call_accept.c
@@ -96,7 +96,7 @@ static int rxrpc_accept_incoming_call(struct rxrpc_local *local,
 	notification->mark = RXRPC_SKB_MARK_NEW_CALL;
 
 	peer = rxrpc_lookup_peer(local, srx, GFP_NOIO);
-	if (IS_ERR(peer)) {
+	if (!peer) {
 		_debug("no peer");
 		ret = -EBUSY;
 		goto error;
diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c
index 47fb167af3e4..e11e4d785127 100644
--- a/net/rxrpc/input.c
+++ b/net/rxrpc/input.c
@@ -639,7 +639,7 @@ static struct rxrpc_connection *rxrpc_conn_from_local(struct rxrpc_local *local,
 	rxrpc_get_addr_from_skb(local, skb, &srx);
 	rcu_read_lock();
 	peer = rxrpc_lookup_peer_rcu(local, &srx);
-	if (IS_ERR(peer))
+	if (!peer)
 		goto cant_find_peer;
 
 	trans = rxrpc_find_transport(local, peer);