1 files changed, 15 insertions, 3 deletions

diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 4f87dffcb9b2..89355a719625 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -1611,17 +1611,27 @@ static int fec_enet_clk_enable(struct net_device *ndev, bool enable)
                                 goto failed_clk_enet_out;
                 }
                 if (fep->clk_ptp) {
+                        mutex_lock(&fep->ptp_clk_mutex);
                         ret = clk_prepare_enable(fep->clk_ptp);
-                        if (ret)
+                        if (ret) {
+                                mutex_unlock(&fep->ptp_clk_mutex);
                                 goto failed_clk_ptp;
+                        } else {
+                                fep->ptp_clk_on = true;
+                        }
+                        mutex_unlock(&fep->ptp_clk_mutex);
                 }
         } else {
                 clk_disable_unprepare(fep->clk_ahb);
                 clk_disable_unprepare(fep->clk_ipg);
                 if (fep->clk_enet_out)
                         clk_disable_unprepare(fep->clk_enet_out);
-                if (fep->clk_ptp)
+                if (fep->clk_ptp) {
+                        mutex_lock(&fep->ptp_clk_mutex);
                         clk_disable_unprepare(fep->clk_ptp);
+                        fep->ptp_clk_on = false;
+                        mutex_unlock(&fep->ptp_clk_mutex);
+                }
         }
 
         return 0;
@@ -2625,6 +2635,8 @@ fec_probe(struct platform_device *pdev)
         if (IS_ERR(fep->clk_enet_out))
                 fep->clk_enet_out = NULL;
 
+        fep->ptp_clk_on = false;
+        mutex_init(&fep->ptp_clk_mutex);
         fep->clk_ptp = devm_clk_get(&pdev->dev, "ptp");
         fep->bufdesc_ex =
                 pdev->id_entry->driver_data & FEC_QUIRK_HAS_BUFDESC_EX;
@@ -2715,10 +2727,10 @@ fec_drv_remove(struct platform_device *pdev)
         struct net_device *ndev = platform_get_drvdata(pdev);
         struct fec_enet_private *fep = netdev_priv(ndev);
 
+        cancel_delayed_work_sync(&fep->time_keep);
         cancel_work_sync(&fep->tx_timeout_work);
         unregister_netdev(ndev);
         fec_enet_mii_remove(fep);
-        del_timer_sync(&fep->time_keep);
         if (fep->reg_phy)
                 regulator_disable(fep->reg_phy);
         if (fep->ptp_clock)