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0319f9909c
linux/drivers
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Alan Stern 0319f9909c USB: EHCI: don't check DMA values in QH overlays 
commit feca7746d5 upstream.

This patch (as1661) fixes a rather obscure bug in ehci-hcd.  In a
couple of places, the driver compares the DMA address stored in a QH's
overlay region with the address of a particular qTD, in order to see
whether that qTD is the one currently being processed by the hardware.
(If it is then the status in the QH's overlay region is more
up-to-date than the status in the qTD, and if it isn't then the
overlay's value needs to be adjusted when the QH is added back to the
active schedule.)

However, DMA address in the overlay region isn't always valid.  It
sometimes will contain a stale value, which may happen by coincidence
to be equal to a qTD's DMA address.  Instead of checking the DMA
address, we should check whether the overlay region is active and
valid.  The patch tests the ACTIVE bit in the overlay, and clears this
bit when the overlay becomes invalid (which happens when the
currently-executing URB is unlinked).

This is the second part of a fix for the regression reported at:

	https://bugs.launchpad.net/bugs/1088733

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Joseph Salisbury <joseph.salisbury@canonical.com>
Reported-and-tested-by: Stephen Thirlwall <sdt@dr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-20 13:04:58 -07:00
..
accessibility
acpi ACPI: Add DMI entry for Sony VGN-FW41E_H 2013-03-04 06:06:44 +08:00
amba ARM: 7366/3: amba: Remove AMBA level regulator support 2012-04-13 14:04:08 +01:00
ata ata_piix: reenable MS Virtual PC guests 2013-03-14 11:29:42 -07:00
atm atm/iphase: rename fregt_t -> ffreg_t 2013-02-14 10:49:05 -08:00
auxdisplay
base drivercore: Fix ordering between deferred_probe and exiting initcalls 2013-02-28 06:59:01 -08:00
bcma bcma: mips: fix clearing device IRQ 2013-01-17 08:50:41 -08:00
block xen/blkback: Don't trust the handle from the frontend. 2013-03-04 06:06:40 +08:00
bluetooth Bluetooth: ath3k: Add support for VAIO VPCEH [0489:e027] 2013-01-11 09:07:17 -08:00
cdrom
char virtio: rng: disallow multiple device registrations, fixes crashes 2013-03-20 13:04:57 -07:00
clk clk: Check parent for NULL in clk_change_rate 2012-07-19 08:58:59 -07:00
clocksource Revert "clocksource: Load the ACPI PM clocksource asynchronously" 2012-04-12 00:05:05 +02:00
connector
cpufreq Fix memory leak in cpufreq stats. 2013-03-14 11:29:51 -07:00
cpuidle Merge branches 'idle-fix' and 'misc' into release 2012-04-06 21:48:59 -04:00
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 ioat: Fix DMA memory sync direction correct flag 2013-01-27 20:47:44 -08:00
edac EDAC: Test correct variable in ->store function 2013-02-03 18:24:41 -06:00
eisa
firewire firewire: add minor number range check to fw_device_init() 2013-03-04 06:06:41 +08:00
firmware dmi_scan: fix missing check for _DMI_ signature in smbios_present() 2013-03-14 11:29:51 -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/radeon: add primary dac adj quirk for R200 board 2013-03-14 11:29:49 -07:00
hid HID: logitech-dj: do not directly call hid_output_raw_report() during probe 2013-03-14 11:29:50 -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: (pmbus/ltc2978) Use detected chip ID to select supported functionality 2013-03-14 11:29:49 -07:00
hwspinlock hwspinlock/core: use global ID to register hwspinlocks on multiple devices 2012-07-16 09:04:25 -07:00
i2c i2c-i801: Add Device IDs for Intel Lynx Point-LP PCH 2012-09-14 10:00:33 -07:00
ide
idle simple_open: automatically convert to simple_open() 2012-04-05 15:25:50 -07:00
ieee802154
infiniband RDMA/nes: Fix for terminate timer crash 2013-01-17 08:50:51 -08:00
input Input: sentelic - only report position of first finger as ST coordinates 2013-01-11 09:06:56 -08:00
iommu iommu/amd: Initialize device table after dma_ops 2013-03-04 06:06:37 +08:00
isdn isdn/gigaset: fix zero size border case in debug dump 2013-02-14 10:49:04 -08:00
leds drivers/leds/leds-lp5521.c: fix lp5521_read() error handling 2012-12-03 11:46:36 -08:00
lguest
macintosh
mca
md md: raid0: fix error return from create_stripe_zones. 2013-03-14 11:29:49 -07:00
media media: rc: unlock on error in show_protocols() 2013-03-04 06:06:41 +08:00
memstick
message
mfd mfd: Only unregister platform devices allocated by the mfd core 2013-01-17 08:50:45 -08:00
misc SGI-XP: handle non-fatal traps 2013-01-11 09:06:29 -08:00
mmc mmc: sdhci-esdhc-imx: fix host version read 2013-02-28 06:59:05 -08:00
mtd mtd: nand: gpmi: reset BCH earlier, too, to avoid NAND startup problems 2013-01-17 08:50:45 -08:00
net e1000e: fix pci-device enable-counter balance 2013-03-14 11:29:50 -07:00
nfc NFC: pn533: Fix mem leak in pn533_in_dep_link_up 2012-12-03 11:47:12 -08:00
nubus
of gpio: Fix range check in of_gpio_simple_xlate() 2012-04-10 14:20:56 -06:00
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 PCI/PM: Clean up PME state when removing a device 2013-02-17 10:49:26 -08:00
pcmcia pcmcia/vrc4171: Add missing spinlock init 2013-02-28 06:59:05 -08:00
pinctrl pinctrl: tegra: set low power mode bank width to 2 2012-10-28 10:14:14 -07:00
platform samsung-laptop: Disable on EFI hardware 2013-02-14 10:48:54 -08:00
pnp pnpacpi: fix incorrect TEST_ALPHA() test 2013-01-11 09:06:29 -08:00
power ab8500_btemp: Demote initcall sequence 2013-03-04 06:06:44 +08:00
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-isl1208.c: call rtc_update_irq() from the alarm irq handler 2013-02-11 08:47:18 -08:00
s390 KVM: s390: Handle hosts not supporting s390-virtio. 2013-02-28 06:59:01 -08:00
sbus
scsi SCSI: storvsc: Initialize the sglist 2013-03-14 11:29:42 -07:00
sfi
sh
sn
spi spi/pl022: disable port when unused 2012-08-09 08:31:38 -07:00
ssb
staging staging: comedi: check s->async for poll(), read() and write() 2013-03-04 06:06:45 +08:00
target target/pscsi: Fix page increment 2013-03-14 11:29:42 -07:00
tc
thermal
tty fb: Yet another band-aid for fixing lockdep mess 2013-02-28 06:59:05 -08:00
uio
usb USB: EHCI: don't check DMA values in QH overlays 2013-03-20 13:04:58 -07:00
uwb uwb: fix error handling 2012-04-18 13:15:51 -07:00
vhost vhost: fix length for cross region descriptor 2013-03-04 06:06:43 +08:00
video fb: Yet another band-aid for fixing lockdep mess 2013-02-28 06:59:05 -08:00
virt
virtio virtio: force vring descriptors to be allocated from lowmem 2013-01-11 09:06:47 -08:00
vlynq
w1
watchdog hpwdt: Fix kdump issue in hpwdt 2012-10-02 10:30:08 -07:00
xen xen/pciback: Don't disable a PCI device that is already disabled. 2013-03-20 13:04:57 -07:00
zorro
Kconfig
Makefile