RDMA/nes: Don't generate async events for unregistered devices

nes_port_ibevent() should not be called when the nes RDMA device is not
registered with the RDMA core.  Add missing checks of of_device_registered flag.

Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>

diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c
index 8b606fd..08c1948 100644 (file)
--- a/drivers/infiniband/hw/nes/nes_hw.c
+++ b/drivers/infiniband/hw/nes/nes_hw.c
@@ -2610,9 +2610,11 @@ static void nes_process_mac_intr(struct nes_device *nesdev, u32 mac_number)
                                        netif_carrier_on(nesvnic->netdev);
 
                                        spin_lock(&nesvnic->port_ibevent_lock);
-                                       if (nesdev->iw_status == 0) {
-                                               nesdev->iw_status = 1;
-                                               nes_port_ibevent(nesvnic);
+                                       if (nesvnic->of_device_registered) {
+                                               if (nesdev->iw_status == 0) {
+                                                       nesdev->iw_status = 1;
+                                                       nes_port_ibevent(nesvnic);
+                                               }
                                        }
                                        spin_unlock(&nesvnic->port_ibevent_lock);
                                }
@@ -2642,9 +2644,11 @@ static void nes_process_mac_intr(struct nes_device *nesdev, u32 mac_number)
                                        netif_carrier_off(nesvnic->netdev);
 
                                        spin_lock(&nesvnic->port_ibevent_lock);
-                                       if (nesdev->iw_status == 1) {
-                                               nesdev->iw_status = 0;
-                                               nes_port_ibevent(nesvnic);
+                                       if (nesvnic->of_device_registered) {
+                                               if (nesdev->iw_status == 1) {
+                                                       nesdev->iw_status = 0;
+                                                       nes_port_ibevent(nesvnic);
+                                               }
                                        }
                                        spin_unlock(&nesvnic->port_ibevent_lock);
                                }
@@ -2703,9 +2707,11 @@ void nes_recheck_link_status(struct work_struct *work)
                                netif_carrier_on(nesvnic->netdev);
 
                                spin_lock(&nesvnic->port_ibevent_lock);
-                               if (nesdev->iw_status == 0) {
-                                       nesdev->iw_status = 1;
-                                       nes_port_ibevent(nesvnic);
+                               if (nesvnic->of_device_registered) {
+                                       if (nesdev->iw_status == 0) {
+                                               nesdev->iw_status = 1;
+                                               nes_port_ibevent(nesvnic);
+                                       }
                                }
                                spin_unlock(&nesvnic->port_ibevent_lock);
                        }
@@ -2723,9 +2729,11 @@ void nes_recheck_link_status(struct work_struct *work)
                                netif_carrier_off(nesvnic->netdev);
 
                                spin_lock(&nesvnic->port_ibevent_lock);
-                               if (nesdev->iw_status == 1) {
-                                       nesdev->iw_status = 0;
-                                       nes_port_ibevent(nesvnic);
+                               if (nesvnic->of_device_registered) {
+                                       if (nesdev->iw_status == 1) {
+                                               nesdev->iw_status = 0;
+                                               nes_port_ibevent(nesvnic);
+                                       }
                                }
                                spin_unlock(&nesvnic->port_ibevent_lock);
                        }