4.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Wan Ahmad Zainie <[email protected]>

commit 009b1948e153ae448f62f1887e2b58d0e05db51b upstream.

Add missing pm_runtime_disable() to remove(), in order to avoid
an Unbalanced pm_runtime_enable when the module is removed and
re-probed.

Error log:
root@intel-corei7-64:~# modprobe -r intel_xhci_usb_role_switch
root@intel-corei7-64:~# modprobe intel_xhci_usb_role_switch
intel_xhci_usb_sw intel_xhci_usb_sw: Unbalanced pm_runtime_enable!

Fixes: cb2968468605 (usb: roles: intel_xhci: Enable runtime PM)
Cc: <[email protected]>
Reviewed-by: Heikki Krogerus <[email protected]>
Signed-off-by: Wan Ahmad Zainie <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

---
 drivers/usb/roles/intel-xhci-usb-role-switch.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/usb/roles/intel-xhci-usb-role-switch.c
+++ b/drivers/usb/roles/intel-xhci-usb-role-switch.c
@@ -161,6 +161,8 @@ static int intel_xhci_usb_remove(struct
 {
        struct intel_xhci_usb_data *data = platform_get_drvdata(pdev);
 
+       pm_runtime_disable(&pdev->dev);
+
        usb_role_switch_unregister(data->role_sw);
        return 0;
 }


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