USB: EHCI: tegra: Fix use-after-free in .remove()

The tegra_ehci_hcd structure is located in the private space allocated
by the core USB code so it must not be accessed after the HCD is
freed.
Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/host/ehci-tegra.c

@@ -479,10 +479,11 @@ static int tegra_ehci_remove(struct platform_device *pdev)
 
 	usb_phy_shutdown(hcd->phy);
 	usb_remove_hcd(hcd);
-	usb_put_hcd(hcd);
 
 	clk_disable_unprepare(tegra->clk);
 
+	usb_put_hcd(hcd);
+
 	return 0;
 }