usb: dwc3: pci: PHY should be deleted later than dwc3 core

If the glue layer is removed first (core layer later),
it deletes the phy device first, then the core device.
But at core's removal, it still uses PHY's resources, it may
cause kernel's oops. It is much like the problem
Paul Zimmerman reported at:
http://marc.info/?l=linux-usb&m=136547502011472&w=2.

Besides, it is reasonable the PHY is deleted at last as
the controller is the PHY's user.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index 227d4a7acad7595d4774e9fc335a790c742087be..eba9e2baf32b3d23a78977342286a2a8be5506aa 100644 (file)
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -196,9 +196,9 @@ static void dwc3_pci_remove(struct pci_dev *pci)
 {
        struct dwc3_pci *glue = pci_get_drvdata(pci);
 
+       platform_device_unregister(glue->dwc3);
        platform_device_unregister(glue->usb2_phy);
        platform_device_unregister(glue->usb3_phy);
-       platform_device_unregister(glue->dwc3);
        pci_set_drvdata(pci, NULL);
        pci_disable_device(pci);
 }