===MODEL PATCH ===

--- a/net/qrtr/qrtr.c
+++ b/net/qrtr/qrtr.c
@@ -651,6 +651,7 @@ static struct qrtr_sock *qrtr_port_lookup(int port)
 	struct qrtr_sock *ipc;
 
 	if (port == QRTR_PORT_CTRL)
+		return NULL;
 		port = 0;
 
 	rcu_read_lock();

===ORIGINAL PATCH ===
diff --git a/net/qrtr/qrtr.c b/net/qrtr/qrtr.c
index e6f4a6202f82..171b7f3be6ef 100644
--- a/net/qrtr/qrtr.c
+++ b/net/qrtr/qrtr.c
@@ -518,8 +518,10 @@ int qrtr_endpoint_post(struct qrtr_endpoint *ep, const void *data, size_t len)
 		if (!ipc)
 			goto err;
 
-		if (sock_queue_rcv_skb(&ipc->sk, skb))
+		if (sock_queue_rcv_skb(&ipc->sk, skb)) {
+			qrtr_port_put(ipc);
 			goto err;
+		}
 
 		qrtr_port_put(ipc);
 	}
@@ -839,6 +841,8 @@ static int qrtr_local_enqueue(struct qrtr_node *node, struct sk_buff *skb,
 
 	ipc = qrtr_port_lookup(to->sq_port);
 	if (!ipc || &ipc->sk == skb->sk) { /* do not send to self */
+		if (ipc)
+			qrtr_port_put(ipc);
 		kfree_skb(skb);
 		return -ENODEV;
 	}

