diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 9b306d7b5c27241cb354be781fde9a3fb7b410ba..b1ab13f3e182bb520cc986512d11e9016ecf1362 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -1302,6 +1302,10 @@ static struct rdma_id_private *cma_id_from_event(struct ib_cm_id *cm_id,
 	bind_list = cma_ps_find(rdma_ps_from_service_id(req.service_id),
 				cma_port_from_service_id(req.service_id));
 	id_priv = cma_find_listener(bind_list, cm_id, ib_event, &req, *net_dev);
+	if (IS_ERR(id_priv)) {
+		dev_put(*net_dev);
+		*net_dev = NULL;
+	}
 
 	return id_priv;
 }