Julius Werner 8b45ff80d9 usb: core: don't try to reset_device() a port that got just disconnected ... commit 481f2d4f89 upstream. The USB hub driver's event handler contains a check to catch SuperSpeed devices that transitioned into the SS.Inactive state and tries to fix them with a reset. It decides whether to do a plain hub port reset or call the usb_reset_device() function based on whether there was a device attached to the port. However, there are device/hub combinations (found with a JetFlash Transcend mass storage stick (8564:1000) on the root hub of an Intel LynxPoint PCH) which can transition to the SS.Inactive state on disconnect (and stay there long enough for the host to notice). In this case, above-mentioned reset check will call usb_reset_device() on the stale device data structure. The kernel will send pointless LPM control messages to the no longer connected device address and can even cause several 5 second khubd stalls on some (buggy?) host controllers, before finally accepting the device's fate amongst a flurry of error messages. This patch makes the choice of reset dependent on the port status that has just been read from the hub in addition to the existence of an in-kernel data structure for the device, and only proceeds with the more extensive reset if both are valid. Signed-off-by: Julius Werner <jwerner@chromium.org> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2013-08-14 22:57:07 -07:00
..
accessibility
acpi	ACPI / battery: Fix parsing _BIX return value	2013-08-11 15:38:42 -07:00
amba
ata	libata: make it clear that sata_inic162x is experimental	2013-08-04 16:25:54 +08:00
atm	atm/iphase: rename fregt_t -> ffreg_t	2013-02-14 10:49:05 -08:00
auxdisplay
base	regmap: cache Fix regcache-rbtree sync	2013-04-12 09:38:43 -07:00
bcma	bcma: mips: fix clearing device IRQ	2013-01-17 08:50:41 -08:00
block	xen/blkback: Check device permissions before allowing OP_DISCARD	2013-08-04 16:25:54 +08:00
bluetooth	Bluetooth: Add support for Dell[QCA 0cf3:817a]	2013-04-05 10:04:15 -07:00
cdrom	drivers/cdrom/cdrom.c: use kzalloc() for failing hardware	2013-07-13 11:03:40 -07:00
char	virtio: console: return -ENODEV on all read operations after unplug	2013-08-14 22:57:07 -07:00
clk	clk: remove notifier from list before freeing it	2013-06-27 11:27:30 -07:00
clocksource
connector
cpufreq	cpufreq / Longhaul: Disable driver by default	2013-05-11 13:48:10 -07:00
cpuidle
crypto	crypto: mv_cesa requires on CRYPTO_HASH to build	2012-05-15 01:10:06 +00:00
dca	dca: check against empty dca_domains list before unregister provider	2013-02-28 06:59:06 -08:00
devfreq
dio
dma	drivers/dma/pl330.c: fix locking in pl330_free_chan_resources()	2013-07-21 18:19:02 -07:00
edac	EDAC: Test correct variable in ->store function	2013-02-03 18:24:41 -06:00
eisa	EISA/PCI: Fix bus res reference	2013-04-12 09:38:44 -07:00
firewire	firewire: fix libdc1394/FlyCap2 iso event regression	2013-08-04 16:26:02 +08:00
firmware	efivars: Handle duplicate names from get_next_variable()	2013-04-05 10:04:36 -07:00
gpio	gpiolib: Don't return -EPROBE_DEFER to sysfs, or for invalid gpios	2012-11-05 09:50:41 +01:00
gpu	drm/i915: quirk no PCH_PWM_ENABLE for Dell XPS13 backlight	2013-08-11 15:38:43 -07:00
hid	HID: usbhid: quirk for Realtek Multi-card reader	2013-04-05 10:04:16 -07:00
hsi	HSI: hsi_char: Remove max_data_size from sysfs	2012-04-23 14:23:32 +03:00
hv	Drivers: hv: Cleanup error handling in vmbus_open()	2012-10-31 10:02:58 -07:00
hwmon	hwmon: (adt7470) Fix incorrect return code check	2013-08-14 22:57:06 -07:00
hwspinlock	hwspinlock: fix __hwspin_lock_request error path	2013-04-12 09:38:46 -07:00
i2c	i2c: designware: always clear interrupts before enabling them	2013-05-24 11:14:22 -07:00
ide
idle
ieee802154
infiniband	IPoIB: Fix send lockup due to missed TX completion	2013-03-28 12:12:25 -07:00
input	Input: cyttsp - fix memcpy size param	2013-06-27 11:27:33 -07:00
iommu	iommu/amd: Only unmap large pages from the first pte	2013-07-28 16:25:47 -07:00
isdn	isdn/gigaset: fix zero size border case in debug dump	2013-02-14 10:49:04 -08:00
leds	drivers/leds/leds-ot200.c: fix error caused by shifted mask	2013-06-07 12:49:13 -07:00
lguest
macintosh
mca
md	md/raid10: remove use-after-free bug.	2013-08-04 16:26:00 +08:00
media	media: mantis: fix silly crash case	2013-05-24 11:14:23 -07:00
memstick
message
mfd	mfd: adp5520: Restore mode bits on resume	2013-05-07 19:51:57 -07:00
misc	SGI-XP: handle non-fatal traps	2013-01-11 09:06:29 -08:00
mmc	mmc: atmel-mci: pio hang on block errors	2013-05-07 19:51:57 -07:00
mtd	vm: convert mtdchar mmap to vm_iomap_memory() helper	2013-04-25 21:19:56 -07:00
net	8139cp: Add dma_mapping_error checking	2013-08-11 15:38:45 -07:00
nfc	NFC: pn533: Fix mem leak in pn533_in_dep_link_up	2012-12-03 11:47:12 -08:00
nubus
of
oprofile	oprofile: perf: use NR_CPUS instead or nr_cpumask_bits for static array	2012-07-16 09:04:21 -07:00
parisc	parisc: move definition of PAGE0 to asm/page.h	2012-05-10 15:12:08 -07:00
parport
pci	ahci: Add AMD CZ SATA device ID	2013-07-21 18:19:01 -07:00
pcmcia	pcmcia: at91_cf: fix gpio_get_value in at91_cf_get_status	2013-07-21 18:19:01 -07:00
pinctrl	pinctrl: tegra: set low power mode bank width to 2	2012-10-28 10:14:14 -07:00
platform	thinkpad-acpi: recognize latest V-Series using DMI_BIOS_VENDOR	2013-06-07 12:49:49 -07:00
pnp	pnpacpi: fix incorrect TEST_ALPHA() test	2013-01-11 09:06:29 -08:00
power	charger-manager: Ensure event is not used as format string	2013-07-13 11:03:40 -07:00
pps
ps3
ptp	ptp_pch: Add missing #include <linux/slab.h>	2012-05-16 14:44:44 -04:00
rapidio	rapidio/tsi721: fix unused variable compiler warning	2012-09-14 10:00:20 -07:00
regulator	regulator: wm831x: Set the new rather than old value for DVS VSEL	2013-01-17 08:50:41 -08:00
remoteproc	remoteproc: fix a potential NULL-dereference on cleanup	2012-10-07 08:32:28 -07:00
rpmsg	rpmsg: fix dependency on initialization order	2012-07-19 08:58:57 -07:00
rtc	drivers/rtc/rtc-rv3029c2.c: fix disabling AIE irq	2013-07-21 18:19:01 -07:00
s390	zfcp: status read buffers on first adapter open with link down	2013-08-04 16:26:03 +08:00
sbus
scsi	SCSI: megaraid_sas: megaraid_sas driver init fails in kdump kernel	2013-08-14 22:57:05 -07:00
sfi
sh
sn
spi	spi/mpc512x-psc: optionally keep PSC SS asserted across xfer segmensts	2013-04-12 09:38:43 -07:00
ssb	ssb: implement spurious tone avoidance	2013-04-25 21:19:55 -07:00
staging	staging: comedi: COMEDI_CANCEL ioctl should wake up read/write	2013-08-04 16:25:54 +08:00
target	iscsi-target: Fix tfc_tpg_nacl_auth_cit configfs length overflow	2013-08-04 16:25:41 +08:00
tc
thermal	thermal: return an error on failure to register thermal class	2013-04-12 09:38:47 -07:00
tty	serial/mxs-auart: increase time to wait for transmitter to become idle	2013-08-11 15:38:41 -07:00
uio
usb	usb: core: don't try to reset_device() a port that got just disconnected	2013-08-14 22:57:07 -07:00
uwb
vhost	vhost/net: fix heads usage of ubuf_info	2013-03-28 12:11:54 -07:00
video	fbcon: when font is freed, clear also vc_font.data	2013-05-07 19:51:53 -07:00
virt
virtio	virtio: support unlocked queue poll	2013-08-04 16:26:03 +08:00
vlynq
w1	w1: fix oops when w1_search is called from netlink connector	2013-03-20 13:04:59 -07:00
watchdog	hpwdt: Fix kdump issue in hpwdt	2012-10-02 10:30:08 -07:00
xen	xen/evtchn: avoid a deadlock when unbinding an event channel	2013-08-04 16:26:00 +08:00
zorro
Kconfig
Makefile