Natty update to 2.6.38.7 stable release

    SRU Justification

    Impact:
       The upstream process for stable tree updates is quite similar
       in scope to the Ubuntu SRU process, e.g., each patch has to
       demonstrably fix a bug, and each patch is vetted by upstream
       by originating either directly from Linus' tree or in a minimally
       backported form of that patch. The 2.6.38.7 upstream stable
       patch set is now available. It should be included in the Ubuntu
       kernel as well.

       git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-2.6.38.y.git

    TEST CASE: TBD

       The following patches are _not_ applied from the 2.6.38.7 stable release since they were already in Natty:

thinkpad-acpi: module autoloading for newer Lenovo ThinkPads.

       The following patches are in the 2.6.38.7 stable release:

cifs: change bleft in decode_unicode_ssetup back to signed type
cifs: check for bytes_remaining going to zero in CIFS_SessSetup
cifs: sanitize length checking in coalesce_t2 (try #3)
cifs: refactor mid finding loop in cifs_demultiplex_thread
cifs: handle errors from coalesce_t2
Validate size of EFI GUID partition entries.
drm/radeon/kms: add pci id to acer travelmate quirk for 5730
x86, hw_breakpoints: Fix racy access to ptrace breakpoints
ptrace: Prepare to fix racy accesses on task breakpoints
hw_breakpoints, powerpc: Fix CONFIG_HAVE_HW_BREAKPOINT off-case in ptrace_set_debugreg()
iwlwifi: add {ack, plpc}_check module parameters
drm/radeon/kms: fix gart setup on fusion parts (v2) backport
vm: fix vm_pgoff wrap in upward expansion
Don't lock guardpage if the stack is growing up
drm/i915/dp: Be paranoid in case we disable a DP before it is attached
drm/i915/lvds: Only act on lid notify when the device is on
drm/i915: Release object along create user fb error path
dccp: handle invalid feature options length
CIFS: Fix memory over bound bug in cifs_parse_mount_options
drivers/rtc/rtc-s3c.c: fixup wake support for rtc
mm: use alloc_bootmem_node_nopanic() on really needed path
tmpfs: fix race between umount and swapoff
ARM: zImage: make sure the stack is 64-bit aligned
PM: Fix warning in pm_restrict_gfp_mask() during SNAPSHOT_S2RAM ioctl
PM / Hibernate: Make snapshot_release() restore GFP mask
PM / Hibernate: Fix ioctl SNAPSHOT_S2RAM
net: ip_expire() must revalidate route
can: fix SJA1000 dlc for RTR packets
ipheth: Properly distinguish length and alignment in URBs and skbs
vmxnet3: Consistently disable irqs when taking adapter->cmd_lock
ehea: fix wrongly reported speed and port
NET: slip, fix ldisc->open retval
PCH_GbE : Fixed the issue of collision detection
PCH_GbE : Fixed the issue of checksum judgment
pch_gbe: support ML7223 IOH
net: dev_close() should check IFF_UP
slcan: fix ldisc->open retval
ASoC: UDA134x: Remove POWER_OFF_ON_STANDBY define.
ASoC: SSM2602: Fix 'Mic Boost2' control
ne-h8300: Fix regression caused during net_device_ops conversion
hydra: Fix regression caused during net_device_ops conversion
ehea: Fix memory hotplug oops
libertas: fix cmdpendingq locking
zorro8390: Fix regression caused during net_device_ops conversion
tmpfs: fix race between umount and writepage
tmpfs: fix race between swapoff and writepage
tmpfs: fix off-by-one in max_blocks checks
tmpfs: fix spurious ENOSPC when racing with unswap
libata: fix oops when LPM is used with PMP
drm/radeon/kms: fix extended lvds info parsing
Revert "mmc: fix a race between card-detect rescan and clock-gate work instances"
cifs: add fallback in is_path_accessible for old servers
rapidio: fix default routing initialization
Revert "x86, AMD: Fix APIC timer erratum 400 affecting K8 Rev.A-E processors"
x86, AMD: Fix ARAT feature setting again
clocksource: Install completely before selecting
tick: Clear broadcast active bit when switching to oneshot
x86, apic: Fix spurious error interrupts triggering on all non-boot APs
Fix cx88 remote control input
v4l: Release module if subdev registration fails
x86: Fix UV BAU for non-consecutive nasids
x86, mce, AMD: Fix leaving freed data in a list
megaraid_sas: Sanity check user supplied length before passing it to dma_alloc_coherent()
cdrom: always check_disk_change() on open
vmxnet3: Fix inconsistent LRO state after initialization
Revert "[SCSI] Retrieve the Caching mode page"
cifs: clean up various nits in unicode routines (try #2)
cifs: fix cifsConvertToUCS() for the mapchars case
iwlegacy: fix IBSS mode crashes
tmpfs: fix highmem swapoff crash regression
Linux 2.6.38.7