net: fec: Fix unbalanced PM runtime calls
authorFlorian Fainelli <f.fainelli@gmail.com>
Sun, 18 Mar 2018 19:49:51 +0000 (12:49 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 31 Mar 2018 16:10:41 +0000 (18:10 +0200)
[ Upstream commit a069215cf5985f3aa1bba550264907d6bd05c5f7 ]

When unbinding/removing the driver, we will run into the following warnings:

[  259.655198] fec 400d1000.ethernet: 400d1000.ethernet supply phy not found, using dummy regulator
[  259.665065] fec 400d1000.ethernet: Unbalanced pm_runtime_enable!
[  259.672770] fec 400d1000.ethernet (unnamed net_device) (uninitialized): Invalid MAC address: 00:00:00:00:00:00
[  259.683062] fec 400d1000.ethernet (unnamed net_device) (uninitialized): Using random MAC address: f2:3e:93:b7:29:c1
[  259.696239] libphy: fec_enet_mii_bus: probed

Avoid these warnings by balancing the runtime PM calls during fec_drv_remove().

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/net/ethernet/freescale/fec_main.c

index 311539c6625f42d060c6c42a91be19be9bd4b7cc..eb2ea231c7ca79f94d346bf794efcf47e16f401b 100644 (file)
@@ -3565,6 +3565,8 @@ fec_drv_remove(struct platform_device *pdev)
        fec_enet_mii_remove(fep);
        if (fep->reg_phy)
                regulator_disable(fep->reg_phy);
+       pm_runtime_put(&pdev->dev);
+       pm_runtime_disable(&pdev->dev);
        if (of_phy_is_fixed_link(np))
                of_phy_deregister_fixed_link(np);
        of_node_put(fep->phy_node);