Dan Williams e3d1050555 usb: fix hub-port pm_runtime_enable() vs runtime pm transitions ... Commit 9262c19d14 "usb: disable port power control if not supported in wHubCharacteristics" gated enabling runtime pm for usb_port devices on whether the parent hub supports power control, which causes a regression. The port must still be allowed to carry out runtime pm callbacks and receive a -EAGAIN or -EBUSY result. Otherwise the usb_port device will transition to the pm error state and trigger the same for the child usb_device. Prior to the offending commit usb_hub_create_port_device() arranged for runtime pm to be disabled is dev_pm_qos_expose_flags() failed. Instead, force the default state of PM_QOS_FLAG_NO_POWER_OFF flag to be set prior to enabling runtime pm. If that policy can not be set then fail registration. Report: http://marc.info/?l=linux-usb&m=140290586301336&w=2 Fixes: 9262c19d14 ("usb: disable port power control if not supported in wHubCharacteristics") Reported-by: Bjørn Mork <bjorn@mork.no> Reported-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2014-06-17 17:04:39 -07:00
..
buffer.c
config.c	Merge 3.14-rc6 into usb-next	2014-03-12 11:40:15 -07:00
devices.c
devio.c	USB patches for 3.15-rc1	2014-04-01 17:06:09 -07:00
driver.c	USB: Avoid runtime suspend loops for HCDs that can't handle suspend/resume	2014-05-24 04:06:00 +09:00
endpoint.c
file.c
generic.c
hcd-pci.c	usb: remove redundant D0 power state set	2014-05-27 15:18:48 -07:00
hcd.c	usb: introduce port status lock	2014-05-27 16:51:50 -07:00
hub.c	usb: fix hub-port pm_runtime_enable() vs runtime pm transitions	2014-06-17 17:04:39 -07:00
hub.h	usb: fix hub-port pm_runtime_enable() vs runtime pm transitions	2014-06-17 17:04:39 -07:00
Kconfig	usb: common: rename phy-fsm-usb.c to usb-otg-fsm.c	2014-05-27 15:29:44 -07:00
Makefile
message.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2014-04-02 16:23:38 -07:00
notify.c
otg_whitelist.h
port.c	usb: fix hub-port pm_runtime_enable() vs runtime pm transitions	2014-06-17 17:04:39 -07:00
quirks.c	usb: Add device quirk for Logitech HD Pro Webcams C920 and C930e	2014-03-07 11:46:51 -08:00
sysfs.c
urb.c
usb-acpi.c	usb: find internal hub tier mismatch via acpi	2014-05-27 16:38:52 -07:00
usb.c
usb.h	usb: hub_handle_remote_wakeup() depends on CONFIG_PM_RUNTIME=y	2014-05-27 16:51:51 -07:00