Commit Graph

52212 Commits

Author SHA1 Message Date
Oliver Neukum 4edf2c8363 USB: fix ark3116 memory leak
this driver has a memory leak in an error case.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:38 -07:00
Jelle Foks 868e440d2f USB: ftdi_sio: Add USB ID of ADSTech USBX-707
This patch adds the USB ID of the ADS Tech USBX-707 USB IR blaster (that
comes with the ADS Tech PTV-305 grabber card), which has a ftdi232bm
inside hooked up to a pic.

With this it should be fairly straightforward to make at least lirc
receiving work with this device. I will submit a patch to lirc for that
as soon as I have one ready, I'm getting data with minicom with this
patch, but need to figure out some more details such as best/correct
baudrate.

Signed-off-by: Jelle Foks <jelle@foks.8m.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:38 -07:00
Oliver Neukum 62127a585c USB: fix race in ftdio_write
this has the same race as the visor driver. The counter must be incremented
under the lock it is checked under.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:38 -07:00
Oliver Neukum b80349b17c USB: fix race in visor_write
this fixes a small race in visor_write.


Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:38 -07:00
Oliver Neukum b19d402a34 USB: aircable cleanup
- proper endianness macros
- scheduling in interrupt in error case

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Naranjo Manuel Francisco <naranjo.manuel@gmail.com>
2007-04-27 13:28:37 -07:00
Kay Sievers 9f8b17e643 USB: make usbdevices export their device nodes instead of using a separate class
o The "real" usb-devices export now a device node which can
  populate /dev/bus/usb.

o The usb_device class is optional now and can be disabled in the
  kernel config. Major/minor of the "real" devices and class devices
  are the same.

o The environment of the usb-device event contains DEVNUM and BUSNUM to
  help udev and get rid of the ugly udev rule we need for the class
  devices.

o The usb-devices and usb-interfaces share the same bus, so I used
  the new "struct device_type" to let these devices identify
  themselves. This also removes the current logic of using a magic
  platform-pointer.
  The name of the device_type is also added to the environment
  which makes it easier to distinguish the different kinds of devices
  on the same subsystem.

  It looks like this:
    add@/devices/pci0000:00/0000:00:1d.1/usb2/2-1
    ACTION=add
    DEVPATH=/devices/pci0000:00/0000:00:1d.1/usb2/2-1
    SUBSYSTEM=usb
    SEQNUM=1533
    MAJOR=189
    MINOR=131
    DEVTYPE=usb_device
    PRODUCT=46d/c03e/2000
    TYPE=0/0/0
    BUSNUM=002
    DEVNUM=004

This udev rule works as a replacement for usb_device class devices:
  SUBSYSTEM=="usb", ACTION=="add", ENV{DEVTYPE}=="usb_device", \
    NAME="bus/usb/$env{BUSNUM}/$env{DEVNUM}", MODE="0644"

Updated patch, which needs the device_type patches in Greg's tree.

I also got a bugzilla assigned for this. :)
  https://bugzilla.novell.com/show_bug.cgi?id=250659


Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:37 -07:00
Randy Dunlap 8784028963 USB: gadget-storage needs BLOCK
With CONFIG_BLOCK=n, this build error happens:
WARNING: "bdev_read_only" [drivers/usb/gadget/g_file_storage.ko] undefined!

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:37 -07:00
Alan Stern 2add5229d7 USB: add power/level sysfs attribute
This patch (as874) adds another piece to the user-visible part of the
USB autosuspend interface.  The new power/level sysfs attribute allows
users to force the device on (with autosuspend off), force the device
to sleep (with autoresume off), or return to normal automatic operation.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:37 -07:00
Peter Stokes 13f6be01db USB: ati_remote2: Add channel support
Add logical channel support for ATI Remote Wonder II

The ATI Remote Wonder II can be configured with one of 16 unique logical
channels. Allowing up to 16 remotes to be used independently within
range of each other. This change adds functionality to configure the
receiver and filter the input data to respond or exclude remotes
configured with different logical channels.

Signed-off-by: Peter Stokes <linux@dadeos.freeserve.co.uk>
Acked-by: Ville Syrjala <syrjala@sci.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:37 -07:00
Oliver Neukum ebcf3ede6d USB: sierra close race
the sierra driver does not directly use usb_kill_urb(). It uses a wrapper.
This wrapper means that callbacks which are running are not killed during
close, resubmitting and illicitly pushing data into the tty layer.
The whole purpose of usb_kill_urb() is subverted. The wrapper must be removed.
The same problem as the option driver.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:37 -07:00
Oliver Neukum 7d28e74b97 USB: option close race
the option driver does not directly use usb_kill_urb(). It uses a wrapper.
This wrapper means that callbacks which are running are not killed during
close, resubmitting and illicitly pushing data into the tty layer.
The whole purpose of usb_kill_urb() is subverted. The wrapper must be removed.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Matthias Urlichs <smurf@smurf.noris.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:37 -07:00
Oliver Neukum 4f93b3e821 USB: omninet memory leak in error case
memory allocated must be freed in the error case.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:37 -07:00
Alan Stern 0cef7727c9 UHCI: Add some WARN_ON()s
This patch (as872) adds some WARN_ON()s to various error checks which
are never supposed to fail.  Unsettlingly, one of them has shown up in
a user's log!  Maybe making the warning more visible and having the
call-stack information available will help pinpoint the source of the
problem.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:36 -07:00
Oliver Neukum 325b70c233 USB: fix endianness in mos7720
there's code unclean w.r.t. endianness in the mos7720 driver.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:36 -07:00
Adrian Bunk 1b55fa2d43 USB: gtco.c: fix a use-before-check
NULL checks should be before the first dereference.

Spotted by the Coverity checker.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:36 -07:00
Oliver Neukum f81ee4d528 USB: iowarrior.c: fix NULL dereference
Am Montag, 19. 2007 10:25 schrieb Adrian Bunk:
> The Coverity checker spotted the following NULL dereference:

And this fixes an oops upon allocation failures.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:36 -07:00
Randy Dunlap 686149f488 USB: dm9601: fix sparse NULL warnings
Fix sparse NULL warnings:

drivers/usb/net/dm9601.c:88:23: warning: Using plain integer as NULL pointer
drivers/usb/net/dm9601.c:174:22: warning: Using plain integer as NULL pointer

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:36 -07:00
Richard Knutsson cb8eaa8b2b USB: io_edgeport: Convert to generic boolean
Signed-off-by: Richard Knutsson <ricknu-0@student.ltu.se>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:36 -07:00
Oliver Neukum 0de9a7024e USB: overhaul of mos7840 driver
This fixes:

- breaking DMA rules about buffers
- usage of _global_ variables to save a single device's attributes
- racy access to urb->status
- smp monotonity issue with statistics
- use of one buffer for many simultaneous URBs
- error handling introduced
- several instances of following NULL pointers
- use after free
- unnecessary GFP_ATOMIC
- GFP_KERNEL in interrupt
- various cleanups
- write room granularity issue that bit cdc-acm
- race in shutdown

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:36 -07:00
Oliver Neukum 96c706ed1c USB: io_edgeport race condition in counters
io_edgeport is using a global variable without locking.
This is _the_ classical race condition. This patch switches to atomic_t.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:36 -07:00
Alan Stern e198a31489 EHCI: add delay to bus_resume before accessing ports
This patch (as870) adds a delay to ehci-hcd's bus_resume routine.
Apparently there are controllers and/or BIOSes out there which need
such a delay to get the ports back into their correct state.  This
fixes Bugzilla #8190.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:35 -07:00
Alan Stern eaafbc3a8a USB: Allow autosuspend delay to equal 0
This patch (as867) adds an entry for the new power/autosuspend
attribute in Documentation/ABI/testing, and it changes the behavior of
the delay value.  Now a delay of 0 means to autosuspend as soon as
possible, and negative values will prevent autosuspend.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:35 -07:00
Alan Stern 6b157c9bf3 USB: separate autosuspend from external suspend
This patch (as866) adds new entry points for external USB device
suspend and resume requests, as opposed to internally-generated
autosuspend or autoresume.  It also changes the existing
remote-wakeup code paths to use the new routines, since remote wakeup
is not the same as autoresume.

As part of the change, it turns out to be necessary to do remote
wakeup of root hubs from a workqueue.  We had been using khubd, but it
does autoresume rather than an external resume.  Using the
ksuspend_usb_wq workqueue for this purpose seemed a logical choice.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:35 -07:00
Oliver Neukum 378465396e USB: help text for mos 7720 driver
this driver's help text incorrectly claims to support only single port
devices.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:35 -07:00
Oliver Neukum fe4b65ec91 mos7720 update
this driver has an interesting way of handling ENOMEM: complain and ignore.
If you decide to live with allocation failures, you must

1. guard against URBs without corresponding buffers
2. complete allocation failures
3. always test entries for NULL before you follow the pointers

This patch does so.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:35 -07:00
Christian Engelmayer 7378c57a8d ehci-fsl: change SI_CTRL, PRI_CTRL register offsets according to errata
Correct the offsets of the SI_CTRL, PRI_CTRL registers according to
the Reference Manual errata sheet in order to prevent unwanted
settings regarding burst transactions and priority states.

Signed-off-by: Christian Engelmayer <Christian.Engelmayer@frequentis.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:34 -07:00
Alan Stern 1b42ae6d43 USB: fix race in HCD removal
This patch (as865) fixes a race in the HCD removal code discovered by
Milan Plzik.  Arrival of an interrupt after the root hub was
unregistered could cause the root-hub status timer to start up, even
after it was supposed to have been shut down.  The problem is fixed by
moving the del_timer_sync() call to after the HCD's stop() method, at
which time IRQ generation should be disabled.

Cc: Milan Plzik <milan.plzik@gmail.com>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:34 -07:00
Simon Arlott 949be0f7be USB: MAINTAINERS: cxacru
I've acquired a second device for testing and plan to make some changes in
the near future to export all the device stats to sysfs (based on my
proposed patch to add them to the proc file ~2007-01-30).

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Acked-by: Duncan Sands <baldrick@free.fr>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:34 -07:00
Simon Arlott fa70fe44ab USB: cxacru: export detailed device info through sysfs
When the device is polled for status there is a lot of useful status
information available that is ignored.  This patch stores the device info
array when the status is polled and adds sysfs files to the usb device to
allow userspace to query it.  Since the device updates its status
internally once a second the poll time is changed to this, and
round_jiffies_relative is used to avoid waking the cpu unnecessarily.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Cc: Duncan Sands <duncan.sands@free.fr>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:34 -07:00
Simon Arlott e9b8daf31b usbatm: create sysfs link "device" from atm class device to usb interface
There is currently no path from the ATM device in /sys to the USB device's
interface that the driver is using; this patch creates a "device" symlink.  It
is then possible to get to the cxacru ADSL statistics
(http://lkml.org/lkml/2007/2/23/328):

/sys/class/atm/cxacru0/device $ ls *_rate *_margin *_attenuation
downstream_attenuation  downstream_snr_margin  upstream_rate
downstream_rate         upstream_attenuation   upstream_snr_margin

If this link is not appropriate I'd have to create device files in
/sys/class/atm/cxacru0 instead - which seems less appropriate since the ADSL
statistics are for the USB device not ATM (which is running over the ADSL).

[akpm@linux-foundation.org: cleanups]
Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Cc: Duncan Sands <duncan.sands@math.u-psud.fr>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:34 -07:00
Oliver Neukum c2cf3f6ec5 USB: unnecessary GFP_ATOMIC in mos7720 driver
GFP_KERNEL will do.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:34 -07:00
Alan Stern 718efa64e3 usbcore: move usb_autosuspend_work
This patch (as864) moves the work routine for USB autosuspend from one
source file to another.  This permits the removal of one whole global
symbol (!) and should smooth the way for more changes in the future.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:34 -07:00
Pete Zaitcev 64e35d9236 libusual: change block scope variable to function scope
Someone changed the code to kthread and used his style instead of mine.

The problem with the block variables is that they provoke shadowing,
which is actually exactly what has happened in my other tree which
has the class patch.

Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:34 -07:00
Pete Zaitcev 643616e678 ub: Bind to first endpoint, not to last
The usb-storage switched to binding to first endpoint recently. Apparently,
there are devices out there with extra endpoints. It is perfectly legal.

Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:34 -07:00
Oliver Neukum c4cabd28c7 USB: cdc-acm: export parsed capabilities through sysfs
this patch exports the attributes cdc-acm knows about a device through sysfs.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:33 -07:00
Oliver Neukum bb74782e62 USB: additional structure from cdc spec
this adds another structure for CDC devices to cdc.h.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:33 -07:00
Pete Zaitcev f1c9e30b5e usbmon: Extended text API
This patch adds a new text API, codenamed '1u', which captures more URB
fields than old '1t' interface did. Also the '1u' text API is compatible
with the future "bus zero" extension.

Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:33 -07:00
Oliver Neukum 2e85c91e2e USB: kill BKL in usblcd
this patch removes usage of BKL from usblcd, which got it from the old
skeleton driver.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:33 -07:00
Oliver Neukum 5d9b89b33f USB: kill BKL in skeleton driver
Iet's kill BKL where we can. This is relative to the last patch to the
skeleton driver.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:33 -07:00
Oliver Neukum ba35e02bdc USB: fix skeleton driver
compilation of the skeleton driver is currently broken. It doesn't compile.
So while I am it:

- fix typo
- add comments to answer common questions
- actually allow autosuspend in the driver struct
- increase paralellism by restricting code under locks

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:33 -07:00
Milan Svoboda 08a78cbb41 USB: pxa2xx_udc: fix hardcoded irq number
This patch changes last use of hardcoded number of irq to
use platfrom_get_irq.

Signed-off-by: Milan Svoboda <msvoboda@ra.rockwell.com>
Acked-by: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:33 -07:00
David Brownell 34ebcd2823 pxa2xx_udc: cleanups, use platform_get_irq
Make the pxa2xx_udc driver fetch its IRQ from platform resources
rather than using compile-time constants, so that it works properly
on IXP4xx systems not just PXA21x/25x/26x.


Other updates:
 - Do that using platform_get_irq()
 - Switch to platform_driver_probe()
 - Handle device_add() errors
 - Remove "function" sysfs attribute and its potential errors
 - Whitespace cleanups

Signed-off-by: Milan Svoboda <msvoboda@ra.rockwell.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:33 -07:00
Norihiko Tomiyama c51e9749ab Adding PID of SHARP S01SH for ipaq.c
I write a patch adding support "SHARP EMONE(S01SH)" device for ipaq.c.
EMONE is a PDA with built-in HSDPA function.



From: Norihiko Tomiyama <norihiko.tomiyama@ctc-g.co.jp>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:33 -07:00
Linus Torvalds d868772fff Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6: (46 commits)
  dev_dbg: check dev_dbg() arguments
  drivers/base/attribute_container.c: use mutex instead of binary semaphore
  mod_sysfs_setup() doesn't return errno when kobject_add_dir() failure occurs
  s2ram: add arch irq disable/enable hooks
  define platform wakeup hook, use in pci_enable_wake()
  security: prevent permission checking of file removal via sysfs_remove_group()
  device_schedule_callback() needs a module reference
  s390: cio: Delay uevents for subchannels
  sysfs: bin.c printk fix
  Driver core: use mutex instead of semaphore in DMA pool handler
  driver core: bus_add_driver should return an error if no bus
  debugfs: Add debugfs_create_u64()
  the overdue removal of the mount/umount uevents
  kobject: Comment and warning fixes to kobject.c
  Driver core: warn when userspace writes to the uevent file in a non-supported way
  Driver core: make uevent-environment available in uevent-file
  kobject core: remove rwsem from struct subsystem
  qeth: Remove usage of subsys.rwsem
  PHY: remove rwsem use from phy core
  IEEE1394: remove rwsem use from ieee1394 core
  ...
2007-04-27 12:58:54 -07:00
Dan Williams 404d5b185b dev_dbg: check dev_dbg() arguments
Duplicate what Zach Brown did for pr_debug in commit
8b2a1fd1b3

[akpm@linux-foundation.org: fix a couple of things which broke]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 10:57:34 -07:00
Matthias Kaehlcke 61a2f59af6 drivers/base/attribute_container.c: use mutex instead of binary semaphore
use mutex instead of binary semaphore in
drivers/base/attribute_container.c

Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 10:57:34 -07:00
Akinobu Mita 240936e18b mod_sysfs_setup() doesn't return errno when kobject_add_dir() failure occurs
mod_sysfs_setup() doesn't return an errno when kobject_add_dir() for module
"holders" directory fails.  So caller of mod_sysfs_setup() will keep going
and get oops.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 10:57:34 -07:00
Johannes Berg a53c46dc82 s2ram: add arch irq disable/enable hooks
After some more discussion this patch replaces it:

From: Johannes Berg <johannes@sipsolutions.net>
Subject: suspend: add arch irq disable/enable hooks

For powermac, we need to do some things between suspending devices and
device_power_off, for example setting the decrementer. This patch
allows architectures to define arch_s2ram_{en,dis}able_irqs in their
asm/suspend.h to have control over this step.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Pavel Machek <pavel@ucw.cz>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 10:57:33 -07:00
David Brownell 075c177152 define platform wakeup hook, use in pci_enable_wake()
This defines a platform hook to enable/disable a device as a wakeup event
source.  It's initially for use with ACPI, but more generally it could be used
whenever enable_irq_wake()/disable_irq_wake() don't suffice.

The hook is called -- if available -- inside pci_enable_wake(); and the
semantics of that call are enhanced so that support for PCI PME# is no longer
needed.  It can now work for devices with "legacy PCI PM", when platform
support allows it.  (That support would use some board-specific signal for for
the same purpose as PME#.)

[akpm@linux-foundation.org: Make it compile with CONFIG_PM=n]
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 10:57:33 -07:00
James Morris 057f6c019f security: prevent permission checking of file removal via sysfs_remove_group()
Prevent permission checking from being performed when the kernel wants to
unconditionally remove a sysfs group, by introducing an kernel-only variant
of lookup_one_len(), lookup_one_len_kern().

Additionally, as sysfs_remove_group() does not check the return value of
the lookup before using it, a BUG_ON has been added to pinpoint the cause
of any problems potentially caused by this (and as a form of annotation).

Signed-off-by: James Morris <jmorris@namei.org>
Cc: Nagendra Singh Tomar <nagendra_tomar@adaptec.com>
Cc: Tejun Heo <htejun@gmail.com>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Cc: Eric Paris <eparis@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 10:57:33 -07:00