[PATCH] usb: phy: am335x: fix race condition in _probe

[Bin Liu]

power off the phy should be done before populate the phy. Otherwise,
am335x_init() could be called by the phy owner to power on the phy first,
then am335x_phy_probe() turns off the phy again without the caller knowing
it.

Fixes: 2fc711d76352 ("usb: phy: am335x: Enable USB remote wakeup using PHY 
wakeup")
Cc: sta...@vger.kernel.org # v3.18+
Signed-off-by: Bin Liu <b-...@ti.com>
---
 drivers/usb/phy/phy-am335x.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/usb/phy/phy-am335x.c b/drivers/usb/phy/phy-am335x.c
index 27bdb7222527..f5f0568d8533 100644
--- a/drivers/usb/phy/phy-am335x.c
+++ b/drivers/usb/phy/phy-am335x.c
@@ -61,9 +61,6 @@ static int am335x_phy_probe(struct platform_device *pdev)
        if (ret)
                return ret;
 
-       ret = usb_add_phy_dev(&am_phy->usb_phy_gen.phy);
-       if (ret)
-               return ret;
        am_phy->usb_phy_gen.phy.init = am335x_init;
        am_phy->usb_phy_gen.phy.shutdown = am335x_shutdown;
 
@@ -82,7 +79,7 @@ static int am335x_phy_probe(struct platform_device *pdev)
        device_set_wakeup_enable(dev, false);
        phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, am_phy->dr_mode, false);
 
-       return 0;
+       return usb_add_phy_dev(&am_phy->usb_phy_gen.phy);
 }
 
 static int am335x_phy_remove(struct platform_device *pdev)
-- 
2.17.1