This is a note to let you know that I've just added the patch titled usb: roles: intel_xhci: Fix Unbalanced pm_runtime_enable to the 4.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: usb-roles-intel_xhci-fix-unbalanced-pm_runtime_enable.patch and it can be found in the queue-4.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 009b1948e153ae448f62f1887e2b58d0e05db51b Mon Sep 17 00:00:00 2001 From: Wan Ahmad Zainie <wan.ahmad.zainie.wan.mohamad@xxxxxxxxx> Date: Tue, 9 Oct 2018 12:52:47 +0800 Subject: usb: roles: intel_xhci: Fix Unbalanced pm_runtime_enable From: Wan Ahmad Zainie <wan.ahmad.zainie.wan.mohamad@xxxxxxxxx> 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: <stable@xxxxxxxxxxxxxxx> Reviewed-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx> Signed-off-by: Wan Ahmad Zainie <wan.ahmad.zainie.wan.mohamad@xxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- 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; } Patches currently in stable-queue which might be from wan.ahmad.zainie.wan.mohamad@xxxxxxxxx are queue-4.18/usb-roles-intel_xhci-fix-unbalanced-pm_runtime_enable.patch