ptp_clock: future-proofing drivers against PTP subsystem becoming optional

[linux-2.6-microblaze.git] / drivers / net / ethernet / sfc / ptp.c

diff --git a/drivers/net/ethernet/sfc/ptp.c b/drivers/net/ethernet/sfc/ptp.c
index dd204d9..77a5364 100644 (file)
--- a/drivers/net/ethernet/sfc/ptp.c
+++ b/drivers/net/ethernet/sfc/ptp.c
@@ -1269,13 +1269,13 @@ int efx_ptp_probe(struct efx_nic *efx, struct efx_channel *channel)
                if (IS_ERR(ptp->phc_clock)) {
                        rc = PTR_ERR(ptp->phc_clock);
                        goto fail3;
-               }
-
-               INIT_WORK(&ptp->pps_work, efx_ptp_pps_worker);
-               ptp->pps_workwq = create_singlethread_workqueue("sfc_pps");
-               if (!ptp->pps_workwq) {
-                       rc = -ENOMEM;
-                       goto fail4;
+               } else if (ptp->phc_clock) {
+                       INIT_WORK(&ptp->pps_work, efx_ptp_pps_worker);
+                       ptp->pps_workwq = create_singlethread_workqueue("sfc_pps");
+                       if (!ptp->pps_workwq) {
+                               rc = -ENOMEM;
+                               goto fail4;
+                       }
                }
        }
        ptp->nic_ts_enabled = false;