diff --git a/src/msg/async/rdma/Infiniband.cc b/src/msg/async/rdma/Infiniband.cc
index 279d3bbb14f29..167d11eb46874 100644
--- a/src/msg/async/rdma/Infiniband.cc
+++ b/src/msg/async/rdma/Infiniband.cc
@@ -110,7 +110,7 @@ Port::Port(CephContext *cct, struct ibv_context* ictxt, uint8_t ipn): ctxt(ictxt
 
 
 Device::Device(CephContext *cct, ibv_device* d, struct ibv_context *dc)
-  : device(d), device_attr(new ibv_device_attr), active_port(nullptr)
+  : device(d), active_port(nullptr)
 {
   if (device == NULL) {
     lderr(cct) << __func__ << " device == NULL" << cpp_strerror(errno) << dendl;
@@ -126,15 +126,15 @@ Device::Device(CephContext *cct, ibv_device* d, struct ibv_context *dc)
     lderr(cct) << __func__ << " open rdma device failed. " << cpp_strerror(errno) << dendl;
     ceph_abort();
   }
-  int r = ibv_query_device(ctxt, device_attr);
-  if (r == -1) {
+  int r = ibv_query_device(ctxt, &device_attr);
+  if (r) {
     lderr(cct) << __func__ << " failed to query rdma device. " << cpp_strerror(errno) << dendl;
     ceph_abort();
   }
 }
 
 void Device::binding_port(CephContext *cct, int port_num) {
-  port_cnt = device_attr->phys_port_cnt;
+  port_cnt = device_attr.phys_port_cnt;
   for (uint8_t i = 0; i < port_cnt; ++i) {
     Port *port = new Port(cct, ctxt, i+1);
     if (i + 1 == port_num && port->get_port_attr()->state == IBV_PORT_ACTIVE) {
@@ -915,9 +915,9 @@ void Infiniband::init()
 
   support_srq = cct->_conf->ms_async_rdma_support_srq;
   if (support_srq)
-    rx_queue_len = device->device_attr->max_srq_wr;
+    rx_queue_len = device->device_attr.max_srq_wr;
   else
-    rx_queue_len = device->device_attr->max_qp_wr;
+    rx_queue_len = device->device_attr.max_qp_wr;
   if (rx_queue_len > cct->_conf->ms_async_rdma_receive_queue_len) {
     rx_queue_len = cct->_conf->ms_async_rdma_receive_queue_len;
     ldout(cct, 1) << __func__ << " receive queue length is " << rx_queue_len << " receive buffers" << dendl;
@@ -936,7 +936,7 @@ void Infiniband::init()
     ceph_abort();
   }
 
-  tx_queue_len = device->device_attr->max_qp_wr;
+  tx_queue_len = device->device_attr.max_qp_wr;
   if (tx_queue_len > cct->_conf->ms_async_rdma_send_buffers) {
     tx_queue_len = cct->_conf->ms_async_rdma_send_buffers;
     ldout(cct, 1) << __func__ << " assigning: " << tx_queue_len << " send buffers"  << dendl;
@@ -944,7 +944,7 @@ void Infiniband::init()
     ldout(cct, 0) << __func__ << " using the max allowed send buffers: " << tx_queue_len << dendl;
   }
 
-  ldout(cct, 1) << __func__ << " device allow " << device->device_attr->max_cqe
+  ldout(cct, 1) << __func__ << " device allow " << device->device_attr.max_cqe
                 << " completion entries" << dendl;
 
   memory_manager = new MemoryManager(cct, device, pd);
@@ -964,6 +964,7 @@ Infiniband::~Infiniband()
     ibv_destroy_srq(srq);
   delete memory_manager;
   delete pd;
+  delete device_list;
 }
 
 /**
diff --git a/src/msg/async/rdma/Infiniband.h b/src/msg/async/rdma/Infiniband.h
index a43d9c5b757ba..9096aaeca93ae 100644
--- a/src/msg/async/rdma/Infiniband.h
+++ b/src/msg/async/rdma/Infiniband.h
@@ -88,7 +88,7 @@ class Device {
   int get_gid_idx() { return active_port->get_gid_idx(); }
   void binding_port(CephContext *c, int port_num);
   struct ibv_context *ctxt;
-  ibv_device_attr *device_attr;
+  ibv_device_attr device_attr;
   Port* active_port;
 };
 
@@ -117,10 +117,10 @@ class DeviceList {
     }
     delete []devices;
     ibv_free_device_list(device_list);
+    rdma_free_devices(device_context_list);
   }
 
   Device* get_device(const char* device_name) {
-    ceph_assert(devices);
     for (int i = 0; i < num; ++i) {
       if (!strlen(device_name) || !strcmp(device_name, devices[i]->get_name())) {
         return devices[i];