Commit Graph

178522 Commits

Author SHA1 Message Date
Alan Stern da307123c6 USB: fix bugs in usb_(de)authorize_device
This patch (as1315) fixes some bugs in the USB core authorization
code:

	usb_deauthorize_device() should deallocate the device strings
	instead of leaking them, and it should invoke
	usb_destroy_configuration() (which does proper reference
	counting) instead of freeing the config information directly.

	usb_authorize_device() shouldn't change the device strings
	until it knows that the authorization will succeed, and it should
	autosuspend the device at the end (having autoresumed the
	device at the start).

	Because the device strings can be changed, the sysfs routines
	to display the strings must protect the string pointers by
	locking the device.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Acked-by: David Vrabel <david.vrabel@csr.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:34:10 -08:00
Alan Stern 8d8558d108 USB: rename usb_configure_device
This patch (as1314) renames usb_configure_device() and
usb_configure_device_otg() in the hub driver.  Neither name is
appropriate because these routines enumerate devices, they don't
configure them.  That's handled by usb_choose_configuration() and
usb_set_configuration().

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:34:09 -08:00
Alan Stern baf67741bf USB: power management documentation update
This patch (as1313) updates the documentation concerning USB power
management.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:34:09 -08:00
Randy Dunlap b2cd41496c Staging/vt66*: kconfig, depends on WLAN
The vt665[56] drivers can be built when CONFIG_NET=n &
CONFIG_NETDEVICES=n or just when CONFIG_WLAN=n.
This leads to build failures.
Prevent this by making them depend on WLAN.

[This patch was lost in a dualing trees merge;
still needs to be re-applied.]

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:27:50 -08:00
Julia Lawall e281cf8966 Staging: batman-adv: introduce missing kfree
Error handling code following a kzalloc should free the allocated data.
Similarly for usb-alloc urb.

The semantic match that finds the first problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@r exists@
local idexpression x;
statement S;
expression E;
identifier f,f1,l;
position p1,p2;
expression *ptr != NULL;
@@

x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
<... when != x
     when != if (...) { <+...x...+> }
(
x->f1 = E
|
 (x->f1 == NULL || ...)
|
 f(...,x->f1,...)
)
...>
(
 return \(0\|<+...x...+>\|ptr\);
|
 return@p2 ...;
)

@script:python@
p1 << r.p1;
p2 << r.p2;
@@

print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:27:50 -08:00
Andrew Lunn ae67491ea0 Staging: batman-adv: Add Kconfig dependancies on PROC_FS and PACKET.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:27:49 -08:00
Peter Huewe ae08961a99 Staging: panel: Adjust range for PANEL_KEYPAD in Kconfig
In panel.c there are only the values 0-3 defined. So 4 is invalid:

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Cc: Willy Tarreau <w@1wt.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:27:49 -08:00
Peter Huewe a6a6c90804 Staging: panel: Fix compilation error with custom lcd charset
When compiling panel.c with a DEFAULT_LCD_CHARSET it fails to compile
with the following error message:
drivers/staging/panel/panel.c: In function >>lcd_init<<:
drivers/staging/panel/panel.c:1396: error: expected expression before
>>;<< token
drivers/staging/panel/panel.c:1475: error: expected expression before
>>;<< token
make[3]: *** [drivers/staging/panel/panel.o] error 1
make[2]: *** [drivers/staging/panel] error 2
make[1]: *** [drivers/staging] error 2

The config used was:
CONFIG_PANEL=m
CONFIG_PANEL_PARPORT=0
CONFIG_PANEL_PROFILE=0
CONFIG_PANEL_KEYPAD=0
CONFIG_PANEL_LCD=1
CONFIG_PANEL_LCD_HEIGHT=2
CONFIG_PANEL_LCD_WIDTH=20
CONFIG_PANEL_LCD_BWIDTH=40
CONFIG_PANEL_LCD_HWIDTH=64
CONFIG_PANEL_LCD_CHARSET=0
CONFIG_PANEL_LCD_PROTO=0
CONFIG_PANEL_LCD_PIN_E=14
CONFIG_PANEL_LCD_PIN_RS=17
CONFIG_PANEL_LCD_PIN_RW=16
CONFIG_PANEL_LCD_PIN_BL=0

This patch fixes both errors, as it fixes the define
Patch against current linux-next tree at Tue Dec 15 06:07:01 2009 +0100

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Acked-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:27:49 -08:00
Nitin Gupta 30fb8a7141 Staging: ramzswap: remove ARM specific d-cache hack
Remove d-cache hack in ramzswap driver that was needed
to workaround a bug in ARM version of update_mmu_cache()
which caused stale data in d-cache to be transferred to
userspace. This bug was fixed by git commit:
	787b2faadc
This also brings down one entry in TODO file.

Signed-off-by: Nitin Gupta <ngupta@vflare.org>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:27:49 -08:00
Randy Dunlap 3d8affc001 Staging: rtl8192x: fix printk formats
Fix printk format warnings in rtl8192[eu]:

drivers/staging/rtl8192e/ieee80211/ieee80211_wx.c:979: warning: format '%d' expects type 'int', but argument 2 has type 'size_t'
drivers/staging/rtl8192e/ieee80211/rtl819x_BAProc.c:385: warning: format '%d' expects type 'int', but argument 3 has type 'long unsigned int'
drivers/staging/rtl8192e/ieee80211/rtl819x_BAProc.c:484: warning: format '%d' expects type 'int', but argument 3 has type 'long unsigned int'
drivers/staging/rtl8192e/ieee80211/rtl819x_BAProc.c:614: warning: format '%d' expects type 'int', but argument 3 has type 'long unsigned int'
drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c:848: warning: format '%d' expects type 'int', but argument 2 has type 'size_t'
drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c:343: warning: format '%d' expects type 'int', but argument 3 has type 'long unsigned int'
drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c:442: warning: format '%d' expects type 'int', but argument 3 has type 'long unsigned int'
drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c:572: warning: format '%d' expects type 'int', but argument 3 has type 'long unsigned int'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:27:48 -08:00
Julia Lawall 4068fe8b2a Staging: wlan-ng: fix Correct size given to memset
Memset should be given the size of the structure, not the size of the pointer.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
type T;
T *x;
expression E;
@@

memset(x, E, sizeof(
+ *
 x))
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:27:48 -08:00
Stephane Glondu 488d374962 staging: rtl8192su: add USB VID/PID for HWNUm-300
The Hercules Wireless N USB mini (HWNUm-300) uses the RTL8191S chipset
and seems to work with this driver.

Signed-off-by: Stephane Glondu <steph@glondu.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:27:47 -08:00
George Kadianakis 55c7d5fc18 staging: fix rtl8192su compilation errors with mac80211
This patch series fixes compilation problems that were caused by
function naming conflicts between the rtl8192su driver and the
mac80211 stack.

Signed-off-by: George Kadianakis <desnacked at gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:27:47 -08:00
George Kadianakis fb5fe2776d staging: fix rtl8192e compilation errors with mac80211
This patch series fixes compilation problems that were caused by
function naming conflicts between the rtl8192e driver and the
mac80211 stack.

Signed-off-by: George Kadianakis <desnacked at gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:27:46 -08:00
George Kadianakis df574b8ecf Staging: fix rtl8187se compilation errors with mac80211
This patch fixes compilation problems that were caused by function
naming conflicts between the rtl8187se driver and the mac80211 stack.

Signed-off-by: George Kadianakis <desnacked at gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:27:46 -08:00
Roel Kluin aad445f8cc Staging: rtl8192su: fix test for negative error in rtl8192_rx_isr()
The error tested for is negative

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:27:46 -08:00
Ian Abbott fa5c5f4ce0 Staging: comedi: jr3_pci: Don't ioremap too much space. Check result.
For the JR3/PCI cards, the size of the PCIBAR0 region depends on the
number of channels.  Don't try and ioremap space for 4 channels if the
card has fewer channels.  Also check for ioremap failure.

Thanks to Anders Blomdell for input and Sami Hussein for testing.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:27:46 -08:00
Bernd Porr d103bef451 Staging: comedi: removed "depricated" from COMEDI_CB_BLOCK
The flag COMEDI_CB_BLOCK was marked as "depricated in the header file".
However, this flag is important to wake up the data-reader (and writer)
after new data has arrived from(for) the DAQ card.


Signed-off-by: Bernd Porr <berndporr@f2s.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:27:45 -08:00
Bernd Porr d4c3a56587 Staging: comedi: usbdux.c: fix locking up of the driver when the comedi ringbuffer runs empty
Jan-Matthias Braun spotted a bug which locks up the driver when the
comedi ring buffer runs empty and provided a patch. The driver would
still send the data to comedi but the reader won't wake up any more.
What's required is setting the flag COMEDI_CB_BLOCK after new data has
arrived which wakes up the reader and therefore the read() command.

Signed-off-by: Bernd Porr <berndporr@f2s.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:27:45 -08:00
Greg Kroah-Hartman 29d249ed80 Staging: dst: remove from the tree
DST is dead, no one is using it and upstream
has abandoned it, so remove it from the tree because
it is not going anywhere.

Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:27:45 -08:00
Wu Zhangjin d7edf47947 Staging: sm7xx: add a new framebuffer driver
Yeeloong netbook has a sm712 video card, need this driver, but it is not
ready to upstream yet, so, go to drivers/staing at first.

This source code is originally from Silicon Motion Technology Corp, and
maintained at http://dev.lemote.com/code/linux_loongson for YeeLoong
netbook. I have done a lot of cleanups for it and merged it into my git
repository at http://dev.lemote.com/code/rt4ls.

Thanks to Simon for testing it on a little-endian x86 platform.

Thanks to Olivier Croset <olivier.croset@actis-computer.com> for
reporting the problem about __BIG_ENDIAN compiling problem and send a
relative patch.

The suspend/resume and blank support are contributed by Jason from
Silicon Motion Technology.

Tested-by: Simon Braunschmidt <sbraun@emlix.com>
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:27:44 -08:00
Kay Sievers 8042273801 devtmpfs: unlock mutex in case of string allocation error
Reported-by: Kirill A. Shutemov <kirill@shutemov.name>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:23:44 -08:00
Michael Hennerich 0787fdf70b Driver core: export platform_device_register_data as a GPL symbol
This allows MFD's to register/bind drivers for their sub devices while
still being compiled as a module.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:23:44 -08:00
Phil Carmody 99b28f1b41 driver core: Prevent reference to freed memory on error path
priv is drv->p. So only free drv->p after we've finished using priv.

Found using a static code analysis tool

Signed-off-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:23:44 -08:00
Thomas Gleixner e6309e7568 Driver-core: Fix bogus 0 error return in device_add()
If device_add() is called with a device which does not have dev->p set
up, then device_private_init() is called. If that succeeds, then the
error variable is set to 0. Now if the dev_name(dev) check further
down fails, then device_add() correctly terminates, but returns 0.
That of course lets the driver progress. If later another driver uses
this half set up device as parent then device_add() of the child
device explodes and renders sysfs completely unusable.

Set the error to -EINVAL if dev_name() check fails.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: "Hans J. Koch" <hjk@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:23:44 -08:00
Phil Carmody 099c2f21d8 Driver core: driver_attribute parameters can often be const*
Many struct driver_attribute descriptors are purely read-only
structures, and there's no need to change them. Therefore make
the promise not to, which will let those descriptors be put in
a ro section.

Signed-off-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:23:43 -08:00
Phil Carmody 66ecb92be9 Driver core: bin_attribute parameters can often be const*
Many struct bin_attribute descriptors are purely read-only
structures, and there's no need to change them. Therefore
make the promise not to, which will let those descriptors
be put in a ro section.

Signed-off-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:23:43 -08:00
Phil Carmody 26579ab70a Driver core: device_attribute parameters can often be const*
Most device_attributes are const, and are begging to be
put in a ro section. However, the create and remove
file interfaces were failing to propagate the const promise
which the only functions they call offer.

Signed-off-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:23:43 -08:00
Sebastian Andrzej Siewior 8e9b936226 Doc/stable rules: add new cherry-pick logic
- it is possible to submit patches for the stable queue without sending
  them directly stable@kernel.org. If the tag (Cc: stable@kernel.org) is
  available in the sign-off area than hpa's script will filter them into
  the stable mailbox once it hits Linus' tree.
- Patches which require others to be applied first can be also specified.
  This was discussued in http://lkml.org/lkml/2009/11/9/474

Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Cc: Brandon Philips <brandon@ifup.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:23:43 -08:00
Kay Sievers 9329d1beae vfs: get_sb_single() - do not pass options twice
Filesystem code usually destroys the option buffer while
parsing it. This leads to errors when the same buffer is
passed twice. In case we fill a new superblock do not call
remount.

This is needed to quite a warning that the debugfs code
causes every boot.

Cc: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:23:43 -08:00
Thomas Gleixner f1f76f865b devtmpfs: Convert dirlock to a mutex
devtmpfs has a rw_lock dirlock which serializes delete_path and
create_path.

This code was obviously never tested with the usual set of debugging
facilities enabled. In the dirlock held sections the code calls:

 - vfs functions which take mutexes
 - kmalloc(, GFP_KERNEL)

In both code pathes the might sleep warning triggers and spams dmesg.

Convert the rw_lock to a mutex. There is no reason why this needs to
be a rwlock.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:23:42 -08:00
Linus Torvalds 6f40334694 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: hda - Add STAC9205 PCI_QUIRK for Dell Vostro 1700
  ASoC: Do not write to invalid registers on the wm9712.
  ALSA: hda - Set mixer name after codec patch
  ASoC: add missing parameter to mx27vis_hifi_hw_free()
  ASoC: sh: FSI:: don't check platform_get_irq's return value against zero
  ALSA: sound/core/pcm_timer.c: use lib/gcd.c
  ALSA: hda - Add MSI blacklist
  ALSA: hda - Add support for the new 27 inch IMacs
  ALSA: hda - Fix NULL dereference with enable_beep=0 option
2009-12-23 10:01:20 -08:00
Greg Kroah-Hartman 193cb93e5a Merge branch 'master' of /home/gregkh/linux/git/torvalds-2.6 2009-12-23 10:00:05 -08:00
Takashi Iwai 54a26089a2 Merge branch 'fix/hda' into for-linus 2009-12-23 18:50:17 +01:00
Takashi Iwai 3095b165a1 Merge branch 'fix/asoc' into for-linus 2009-12-23 18:50:13 +01:00
Takashi Iwai 4dc2ec09b8 Merge branch 'fix/misc' into for-linus 2009-12-23 18:49:55 +01:00
Anisse Astier 95e70e8753 ALSA: hda - Add STAC9205 PCI_QUIRK for Dell Vostro 1700
Signed-off-by: Anisse Astier <anisse@astier.eu>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-12-23 18:49:22 +01:00
Randy Dunlap 9c717de946 kfifo: fix Error/broken kernel-doc notation
Fix kernel-doc errors and warnings in new header file kfifo.h.
Don't use kernel-doc "/**" for internal functions whose comments
are not in kernel-doc format.

kernel-doc section header names (like "Note:") must be unique
per function.  Looks like I need to document that.

  Error(include/linux/kfifo.h:76): duplicate section name 'Note'
  Warning(include/linux/kfifo.h:88): Excess function parameter 'size' description in 'INIT_KFIFO'
  Error(include/linux/kfifo.h:101): duplicate section name 'Note'
  Warning(include/linux/kfifo.h:257): No description found for parameter 'fifo'
    (many of this last type, from internal functions)

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Stefani Seibold <stefani@seibold.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-23 09:30:37 -08:00
Linus Torvalds 6432ed648a Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  sched: Revert 738d2be, simplify set_task_cpu()
2009-12-23 09:12:57 -08:00
Linus Torvalds 94e5165aa7 Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6:
  quota: Improve checking of quota file header
  jbd: jbd-debug and jbd2-debug should be writable
  ext4: fix sleep inside spinlock issue with quota and dealloc (#14739)
  ext4: Fix potential quota deadlock
  quota: Fix 64-bit limits setting on 32-bit archs
  ext3: Replace lock/unlock_super() with an explicit lock for resizing
  ext3: Replace lock/unlock_super() with an explicit lock for the orphan list
  ext3: ext3_mark_recovery_complete() doesn't need to use lock_super
  ext3: Remove outdated comment about lock_super()
  quota: Move duplicated code to separate functions
  ext4: Convert to generic reserved quota's space management.
  quota: decouple fs reserved space from quota reservation
  Add unlocked version of inode_add_bytes() function
  ext3: quota macros cleanup [V2]
2009-12-23 09:12:20 -08:00
Linus Torvalds f42ecb2808 Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (35 commits)
  drm/radeon/kms: add definitions for v4 power tables
  drm/radeon/kms: never combine LVDS with another encoder
  drm/radeon/kms: Check module arguments to be valid V2
  drm/radeon/kms: Avoid crash when trying to cleanup uninitialized structure
  drm/radeon/kms: add cvt mode if we only have lvds w/h and no edid (v4)
  drm/radeon/kms: add 3DC compression support
  drm/radeon/kms: allow rendering while no colorbuffer is set on r300
  drm/radeon/kms: enable memory clock reading on legacy (V2)
  drm/radeon/kms: prevent parallel AtomBIOS calls
  drm/radeon/kms: set proper default tv standard
  drm/radeon/kms: fix legacy rmx
  drm/radeon/kms/atom: fill in proper defines for digital setup
  drm/kms: silencing a false positive warning.
  drm/mm: fix logic for selection of best fit block
  drm/vmwgfx: Use TTM handles instead of SIDs as user-space surface handles.
  drm/vmwgfx: Return -ERESTARTSYS when interrupted by a signal.
  drm/vmwgfx: Fix unlocked ioctl and add proper access control
  drm/radeon: fix build on 64-bit with some compilers.
  drivers/gpu: Use kzalloc for allocating only one thing
  DRM: Rename clamp variable
  ...
2009-12-23 08:59:32 -08:00
Stefani Seibold 119eecc831 Fix usb_serial_probe() problem introduced by the recent kfifo changes
The USB serial code was a new user of the kfifo API, and it was missed
when porting things to the new kfifo API.

Please make the write_fifo in place.  Here is my patch to fix the
regression and full ported version.

Signed-off-by: Stefani Seibold <stefani@seibold.net>
Reported-and-tested-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Greg KH <greg@kroah.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-23 08:53:31 -08:00
Eric Millbrandt 48e3cbb3f6 ASoC: Do not write to invalid registers on the wm9712.
This patch fixes a bug where "virtual" registers were being written to the ac97
bus.  This was causing unrelated registers to become corrupted (headphone 0x04,
touchscreen 0x78, etc).

This patch duplicates protection that was included in the wm9713 driver.

Signed-off-by: Eric Millbrandt <emillbrandt@dekaresearch.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
2009-12-23 15:20:56 +00:00
Jan Kara 869835dfad quota: Improve checking of quota file header
When we are asked for vfsv0 quota format and the file is in vfsv1
format (or vice versa), refuse to use the quota file. Also return
with error when we don't like the header of quota file.

Signed-off-by: Jan Kara <jack@suse.cz>
2009-12-23 13:44:13 +01:00
Yin Kangkai 765f836190 jbd: jbd-debug and jbd2-debug should be writable
jbd-debug and jbd2-debug is currently read-only (S_IRUGO), which is not
correct. Make it writable so that we can start debuging.

Signed-off-by: Yin Kangkai <kangkai.yin@intel.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jan Kara <jack@suse.cz>
2009-12-23 13:44:13 +01:00
Dmitry Monakhov 39bc680a81 ext4: fix sleep inside spinlock issue with quota and dealloc (#14739)
Unlock i_block_reservation_lock before vfs_dq_reserve_block().
This patch fixes http://bugzilla.kernel.org/show_bug.cgi?id=14739

CC: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Jan Kara <jack@suse.cz>
2009-12-23 13:44:12 +01:00
Dmitry Monakhov d21cd8f163 ext4: Fix potential quota deadlock
We have to delay vfs_dq_claim_space() until allocation context destruction.
Currently we have following call-trace:
ext4_mb_new_blocks()
  /* task is already holding ac->alloc_semp */
 ->ext4_mb_mark_diskspace_used
    ->vfs_dq_claim_space()  /*  acquire dqptr_sem here. Possible deadlock */
 ->ext4_mb_release_context() /* drop ac->alloc_semp here */

Let's move quota claiming to ext4_da_update_reserve_space()

 =======================================================
 [ INFO: possible circular locking dependency detected ]
 2.6.32-rc7 #18
 -------------------------------------------------------
 write-truncate-/3465 is trying to acquire lock:
  (&s->s_dquot.dqptr_sem){++++..}, at: [<c025e73b>] dquot_claim_space+0x3b/0x1b0

 but task is already holding lock:
  (&meta_group_info[i]->alloc_sem){++++..}, at: [<c02ce962>] ext4_mb_load_buddy+0xb2/0x370

 which lock already depends on the new lock.

 the existing dependency chain (in reverse order) is:

 -> #3 (&meta_group_info[i]->alloc_sem){++++..}:
        [<c017d04b>] __lock_acquire+0xd7b/0x1260
        [<c017d5ea>] lock_acquire+0xba/0xd0
        [<c0527191>] down_read+0x51/0x90
        [<c02ce962>] ext4_mb_load_buddy+0xb2/0x370
        [<c02d0c1c>] ext4_mb_free_blocks+0x46c/0x870
        [<c029c9d3>] ext4_free_blocks+0x73/0x130
        [<c02c8cfc>] ext4_ext_truncate+0x76c/0x8d0
        [<c02a8087>] ext4_truncate+0x187/0x5e0
        [<c01e0f7b>] vmtruncate+0x6b/0x70
        [<c022ec02>] inode_setattr+0x62/0x190
        [<c02a2d7a>] ext4_setattr+0x25a/0x370
        [<c022ee81>] notify_change+0x151/0x340
        [<c021349d>] do_truncate+0x6d/0xa0
        [<c0221034>] may_open+0x1d4/0x200
        [<c022412b>] do_filp_open+0x1eb/0x910
        [<c021244d>] do_sys_open+0x6d/0x140
        [<c021258e>] sys_open+0x2e/0x40
        [<c0103100>] sysenter_do_call+0x12/0x32

 -> #2 (&ei->i_data_sem){++++..}:
        [<c017d04b>] __lock_acquire+0xd7b/0x1260
        [<c017d5ea>] lock_acquire+0xba/0xd0
        [<c0527191>] down_read+0x51/0x90
        [<c02a5787>] ext4_get_blocks+0x47/0x450
        [<c02a74c1>] ext4_getblk+0x61/0x1d0
        [<c02a7a7f>] ext4_bread+0x1f/0xa0
        [<c02bcddc>] ext4_quota_write+0x12c/0x310
        [<c0262d23>] qtree_write_dquot+0x93/0x120
        [<c0261708>] v2_write_dquot+0x28/0x30
        [<c025d3fb>] dquot_commit+0xab/0xf0
        [<c02be977>] ext4_write_dquot+0x77/0x90
        [<c02be9bf>] ext4_mark_dquot_dirty+0x2f/0x50
        [<c025e321>] dquot_alloc_inode+0x101/0x180
        [<c029fec2>] ext4_new_inode+0x602/0xf00
        [<c02ad789>] ext4_create+0x89/0x150
        [<c0221ff2>] vfs_create+0xa2/0xc0
        [<c02246e7>] do_filp_open+0x7a7/0x910
        [<c021244d>] do_sys_open+0x6d/0x140
        [<c021258e>] sys_open+0x2e/0x40
        [<c0103100>] sysenter_do_call+0x12/0x32

 -> #1 (&sb->s_type->i_mutex_key#7/4){+.+...}:
        [<c017d04b>] __lock_acquire+0xd7b/0x1260
        [<c017d5ea>] lock_acquire+0xba/0xd0
        [<c0526505>] mutex_lock_nested+0x65/0x2d0
        [<c0260c9d>] vfs_load_quota_inode+0x4bd/0x5a0
        [<c02610af>] vfs_quota_on_path+0x5f/0x70
        [<c02bc812>] ext4_quota_on+0x112/0x190
        [<c026345a>] sys_quotactl+0x44a/0x8a0
        [<c0103100>] sysenter_do_call+0x12/0x32

 -> #0 (&s->s_dquot.dqptr_sem){++++..}:
        [<c017d361>] __lock_acquire+0x1091/0x1260
        [<c017d5ea>] lock_acquire+0xba/0xd0
        [<c0527191>] down_read+0x51/0x90
        [<c025e73b>] dquot_claim_space+0x3b/0x1b0
        [<c02cb95f>] ext4_mb_mark_diskspace_used+0x36f/0x380
        [<c02d210a>] ext4_mb_new_blocks+0x34a/0x530
        [<c02c83fb>] ext4_ext_get_blocks+0x122b/0x13c0
        [<c02a5966>] ext4_get_blocks+0x226/0x450
        [<c02a5ff3>] mpage_da_map_blocks+0xc3/0xaa0
        [<c02a6ed6>] ext4_da_writepages+0x506/0x790
        [<c01de272>] do_writepages+0x22/0x50
        [<c01d766d>] __filemap_fdatawrite_range+0x6d/0x80
        [<c01d7b9b>] filemap_flush+0x2b/0x30
        [<c02a40ac>] ext4_alloc_da_blocks+0x5c/0x60
        [<c029e595>] ext4_release_file+0x75/0xb0
        [<c0216b59>] __fput+0xf9/0x210
        [<c0216c97>] fput+0x27/0x30
        [<c02122dc>] filp_close+0x4c/0x80
        [<c014510e>] put_files_struct+0x6e/0xd0
        [<c01451b7>] exit_files+0x47/0x60
        [<c0146a24>] do_exit+0x144/0x710
        [<c0147028>] do_group_exit+0x38/0xa0
        [<c0159abc>] get_signal_to_deliver+0x2ac/0x410
        [<c0102849>] do_notify_resume+0xb9/0x890
        [<c01032d2>] work_notifysig+0x13/0x21

 other info that might help us debug this:

 3 locks held by write-truncate-/3465:
  #0:  (jbd2_handle){+.+...}, at: [<c02e1f8f>] start_this_handle+0x38f/0x5c0
  #1:  (&ei->i_data_sem){++++..}, at: [<c02a57f6>] ext4_get_blocks+0xb6/0x450
  #2:  (&meta_group_info[i]->alloc_sem){++++..}, at: [<c02ce962>] ext4_mb_load_buddy+0xb2/0x370

 stack backtrace:
 Pid: 3465, comm: write-truncate- Not tainted 2.6.32-rc7 #18
 Call Trace:
  [<c0524cb3>] ? printk+0x1d/0x22
  [<c017ac9a>] print_circular_bug+0xca/0xd0
  [<c017d361>] __lock_acquire+0x1091/0x1260
  [<c016bca2>] ? sched_clock_local+0xd2/0x170
  [<c0178fd0>] ? trace_hardirqs_off_caller+0x20/0xd0
  [<c017d5ea>] lock_acquire+0xba/0xd0
  [<c025e73b>] ? dquot_claim_space+0x3b/0x1b0
  [<c0527191>] down_read+0x51/0x90
  [<c025e73b>] ? dquot_claim_space+0x3b/0x1b0
  [<c025e73b>] dquot_claim_space+0x3b/0x1b0
  [<c02cb95f>] ext4_mb_mark_diskspace_used+0x36f/0x380
  [<c02d210a>] ext4_mb_new_blocks+0x34a/0x530
  [<c02c601d>] ? ext4_ext_find_extent+0x25d/0x280
  [<c02c83fb>] ext4_ext_get_blocks+0x122b/0x13c0
  [<c016bca2>] ? sched_clock_local+0xd2/0x170
  [<c016be60>] ? sched_clock_cpu+0x120/0x160
  [<c016beef>] ? cpu_clock+0x4f/0x60
  [<c0178fd0>] ? trace_hardirqs_off_caller+0x20/0xd0
  [<c052712c>] ? down_write+0x8c/0xa0
  [<c02a5966>] ext4_get_blocks+0x226/0x450
  [<c016be60>] ? sched_clock_cpu+0x120/0x160
  [<c016beef>] ? cpu_clock+0x4f/0x60
  [<c017908b>] ? trace_hardirqs_off+0xb/0x10
  [<c02a5ff3>] mpage_da_map_blocks+0xc3/0xaa0
  [<c01d69cc>] ? find_get_pages_tag+0x16c/0x180
  [<c01d6860>] ? find_get_pages_tag+0x0/0x180
  [<c02a73bd>] ? __mpage_da_writepage+0x16d/0x1a0
  [<c01dfc4e>] ? pagevec_lookup_tag+0x2e/0x40
  [<c01ddf1b>] ? write_cache_pages+0xdb/0x3d0
  [<c02a7250>] ? __mpage_da_writepage+0x0/0x1a0
  [<c02a6ed6>] ext4_da_writepages+0x506/0x790
  [<c016beef>] ? cpu_clock+0x4f/0x60
  [<c016bca2>] ? sched_clock_local+0xd2/0x170
  [<c016be60>] ? sched_clock_cpu+0x120/0x160
  [<c016be60>] ? sched_clock_cpu+0x120/0x160
  [<c02a69d0>] ? ext4_da_writepages+0x0/0x790
  [<c01de272>] do_writepages+0x22/0x50
  [<c01d766d>] __filemap_fdatawrite_range+0x6d/0x80
  [<c01d7b9b>] filemap_flush+0x2b/0x30
  [<c02a40ac>] ext4_alloc_da_blocks+0x5c/0x60
  [<c029e595>] ext4_release_file+0x75/0xb0
  [<c0216b59>] __fput+0xf9/0x210
  [<c0216c97>] fput+0x27/0x30
  [<c02122dc>] filp_close+0x4c/0x80
  [<c014510e>] put_files_struct+0x6e/0xd0
  [<c01451b7>] exit_files+0x47/0x60
  [<c0146a24>] do_exit+0x144/0x710
  [<c017b163>] ? lock_release_holdtime+0x33/0x210
  [<c0528137>] ? _spin_unlock_irq+0x27/0x30
  [<c0147028>] do_group_exit+0x38/0xa0
  [<c017babb>] ? trace_hardirqs_on+0xb/0x10
  [<c0159abc>] get_signal_to_deliver+0x2ac/0x410
  [<c0102849>] do_notify_resume+0xb9/0x890
  [<c0178fd0>] ? trace_hardirqs_off_caller+0x20/0xd0
  [<c017b163>] ? lock_release_holdtime+0x33/0x210
  [<c0165b50>] ? autoremove_wake_function+0x0/0x50
  [<c017ba54>] ? trace_hardirqs_on_caller+0x134/0x190
  [<c017babb>] ? trace_hardirqs_on+0xb/0x10
  [<c0300ba4>] ? security_file_permission+0x14/0x20
  [<c0215761>] ? vfs_write+0x131/0x190
  [<c0214f50>] ? do_sync_write+0x0/0x120
  [<c0103115>] ? sysenter_do_call+0x27/0x32
  [<c01032d2>] work_notifysig+0x13/0x21

CC: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Jan Kara <jack@suse.cz>
2009-12-23 13:44:12 +01:00
Jan Kara 82fdfa928c quota: Fix 64-bit limits setting on 32-bit archs
Fix warnings:
fs/quota/quota_v2.c: In function ‘v2_read_file_info’:
fs/quota/quota_v2.c:123: warning: integer constant is too large for ‘long’ type
fs/quota/quota_v2.c:124: warning: integer constant is too large for ‘long’ type

Reported-by: Jerry Leo <jerryleo860202@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
2009-12-23 13:44:12 +01:00
Eric Sandeen 96d2a495c2 ext3: Replace lock/unlock_super() with an explicit lock for resizing
Use a separate lock to protect s_groups_count and the other block
group descriptors which get changed via an on-line resize operation,
so we can stop overloading the use of lock_super().

Port of ext4 commit 32ed5058ce by
Theodore Ts'o <tytso@mit.edu>.

CC: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>
2009-12-23 13:44:12 +01:00
Eric Sandeen b8a052d016 ext3: Replace lock/unlock_super() with an explicit lock for the orphan list
Use a separate lock to protect the orphan list, so we can stop
overloading the use of lock_super().

Port of ext4 commit 3b9d4ed266
by Theodore Ts'o <tytso@mit.edu>.

CC: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>
2009-12-23 13:44:11 +01:00