Commit Graph

190142 Commits

Author SHA1 Message Date
Alan Stern
0e5f231bc1 USB: EHCI: defer reclamation of siTDs
This patch (as1369) fixes a problem in ehci-hcd.  Some controllers
occasionally run into trouble when the driver reclaims siTDs too
quickly.  This can happen while streaming audio; it causes the
controller to crash.

The patch changes siTD reclamation to work the same way as iTD
reclamation: Completed siTDs are stored on a list and not reused until
at least one frame has passed.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Nate Case <ncase@xes-inc.com>
CC: <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-22 15:18:28 -07:00
Alan Stern
5f677f1d45 USB: fix remote wakeup settings during system sleep
This patch (as1363) changes the way USB remote wakeup is handled
during system sleeps.  It won't be enabled unless an interface driver
specifically needs it.  Also, it won't be enabled during the FREEZE or
QUIESCE phases of hibernation, when the system doesn't respond to
wakeup events anyway.  Finally, if the device is already
runtime-suspended with remote wakeup enabled, but wakeup is supposed
to be disabled for the system sleep, the device gets woken up so that
it can be suspended again with the proper wakeup setting.

This will fix problems people have reported with certain USB webcams
that generate wakeup requests when they shouldn't, and as a result
cause system suspends to fail.  See

	https://bugs.launchpad.net/ubuntu/+source/linux/+bug/515109

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Erik Andrén <erik.andren@gmail.com>
CC: <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-22 15:18:27 -07:00
Manuel Jander
9a61d72602 USB: pl2303: add AdLink ND-6530 USB IDs
I read a rumor that the AdLink ND6530 USB RS232, RS422 and RS485
isolated adapter is actually a PL2303 based usb serial adapter. I
tried it out, and as far as I can tell it works.

Signed-off-by: Manuel Jander <manuel.jander@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-22 15:18:25 -07:00
William Lightning
cfbaa39347 USB: Add id for HP ev2210 a.k.a Sierra MC5725 miniPCI-e Cell Modem.
Signed-off-by: William Lightning <kassah@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-22 15:18:24 -07:00
Sergei Shtylyov
9600cbb24b USB: OHCI: DA8xx/OMAP-L1x: fix up macro rename
It appears that the DA8xx/OMAP-L1x glue layer went into the kernel uncompilable:
commit 1960e693ac (davinci: da8xx/omapl1: add
support for the second sysconfig module) has renamed DA8XX_SYSCFG_* macros to
DA8XX_SYSCFG0_* and it's been committed before the glue layer...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-22 15:18:24 -07:00
Dan Williams
898f89c388 USB: qcaux: add LG Rumor and Sanyo Katana LX device IDs
These phones also have the familiar ttyACM0/ttyUSB0 schizophrenia when
placed into "Dial-up Networking" mode after connecting a USB cable.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-22 15:18:23 -07:00
David Vrabel
a23b64845f usb: wusb: don't overflow the Keep Alive IE buffer
The Keep Alive IE only has space for WUIE_ELT_MAX (== 4) device addresses.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-22 15:18:22 -07:00
Ajay Kumar Gupta
18f91196b6 USB: ehci: omap: fix kernel panic with rmmod
Sets the regulator values to NULL if they are not defined. This
is required to fix the kernel panic in exit path when EHCI module
is removed on the platforms where EHCI regulator are not set.

Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-22 15:18:21 -07:00
Harrison Metzger
4c1f5c88aa USB: fixed bug in usbsevseg using USB autosuspend incorrectly
This patch fixes a bug with the usbsevseg driver which assumed that USB
autosuspend will always be used.

Signed-off-by: Harrison Metzger <harrisonmetz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-22 15:18:21 -07:00
Alex Manoussakis
cdc04834ce USB: ti_usb_3410_5052: adding multitech dialup fax/modem devices
The following patch adds support for Multitech Systems' MT9234MU and
MT9234ZBA usb dialup fax modems. It is based on a patch and firmware
provided to me by Multitech Systems' support, after I reported to them
that my MT9234MU modem was not working with recent linux kernels.

Signed-off-by: Alex Manoussakis <alex@juniper.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-22 15:18:20 -07:00
Linus Torvalds
c81eddb0e3 Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
  [S390] zcore: Fix reipl device detection
  [S390] vdso: use ntp adjusted clock multiplier
  [S390] cio: use exception-save stsch
  [S390] add hook to reenable mss after hibernation
  [S390] cio: allow enable_facility from outside init functions
  [S390] dasd: fix endless loop in erp
2010-04-22 08:43:59 -07:00
Michael Holzheu
76ef964c78 [S390] zcore: Fix reipl device detection
The reipl device information is passed from the kernel to zfcpdump
using a pointer in the lowcore (0xe00) that points to the reipl
information Currently if that pointer is not zero, we copy the reipl
information. If the pointer is not initialized and points outside
the accessible memory, it can happen that the memory copy fails.
In that case we currently stop the initialization of zcore which leads
to a failing kernel dump. The correct behavior is to disable the reipl
after dump and continue with zcore intialization.

Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-04-22 17:17:19 +02:00
Hendrik Brueckner
157a1a27d5 [S390] vdso: use ntp adjusted clock multiplier
Commit "timekeeping: Fix clock_gettime vsyscall time warp" (0696b711e)
introduced the new parameter "mult" to update_vsyscall(). This parameter
contains the internal NTP adjusted clock multiplier.

The s390x vdso did not use this adjusted multiplier.  Instead, it used
the constant clock multiplier for gettimeofday() and clock_gettime()
variants.  This may result in observable time warps as explained in
commit 0696b711e.

Make the NTP adjusted clock multiplier available to the s390x vdso
implementation and use it for time calculations.

Cc: <stable@kernel.org>
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-04-22 17:17:19 +02:00
Sebastian Ott
8821d24cd2 [S390] cio: use exception-save stsch
Using stsch on schids with ssid != 0 can lead to an operand
exception. Use stsch_err to handle potential exceptions
if we fail to reenable mss after hibernation.

Cc: <stable@kernel.org>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-04-22 17:17:19 +02:00
Sebastian Ott
889ee9556c [S390] add hook to reenable mss after hibernation
Reenable multiple subchannel sets after hibernation,
prior to the device callbacks.

Cc: <stable@kernel.org>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-04-22 17:17:19 +02:00
Sebastian Ott
818c272bd7 [S390] cio: allow enable_facility from outside init functions
Prepare chsc_enable_facility to be used from outside init functions.
Use static memory for the chsc call and protect its access by a
spinlock (although there is no concurrent usage).

Cc: <stable@kernel.org>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-04-22 17:17:19 +02:00
Stefan Haberland
6a5176c474 [S390] dasd: fix endless loop in erp
If not enough memory is available to build a new erp request it ended
up in an endless loop trying to build erp requests. Fixed the loop to
proceed the next request instead.

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-04-22 17:17:19 +02:00
Linus Torvalds
a28ca3f324 Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
  [SCSI] bnx2i: Bug fixes related to MTU change issue when there are active iscsi sessions
  [SCSI] ibmvscsi: fix DMA API misuse
  [SCSI] wd7000: fix reset handler typo spin_unlock_irq() => spin_lock_irq()
  [SCSI] zfcp: Fix tracing of requests with error status
  [SCSI] zfcp: Update MAINTAINERS entry
  [SCSI] iscsi_tcp: fix relogin/shutdown hang
  [SCSI] qla2xxx: fix lock imbalance
  [SCSI] lpfc: fix lock imbalances
  [SCSI] be2iscsi: fix lock imbalance
  [SCSI] dpt_i2o: several use after free issues
2010-04-22 07:50:11 -07:00
Balbir Singh
61fb06cc8e virtio: Fix GFP flags passed from the virtio balloon driver
The virtio balloon driver can dig into the reservation pools of the OS
to satisfy a balloon request.  This is not advisable and other balloon
drivers (drivers/xen/balloon.c) avoid this as well.

The patch also adds changes to avoid printing a warning if allocation
fails, since we retry after sometime anyway.

Signed-off-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: kvm <kvm@vger.kernel.org>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-04-22 07:34:05 -07:00
Linus Torvalds
b7b6cf005b Merge branch 'for-linus/i2c' of git://git.fluff.org/bjdooks/linux
* 'for-linus/i2c' of git://git.fluff.org/bjdooks/linux:
  i2c-stu300: off by one issue
  i2c-pnx: Add stop conditions for end of transfer
  i2c-pnx: Limit maximum divider to 1023
  i2c-omap: fix OOPS in omap_i2c_unidle() during probe
  i2c-imx: fix error handling
2010-04-22 07:20:30 -07:00
Randy Dunlap
74a920139a staging: fix dt3155 build
When the dt3155 driver is built-in (not as a loadable module),
these build errors happen:

  drivers/staging/dt3155/dt3155_drv.c:1047: error: implicit declaration of function 'request_irq'
  drivers/staging/dt3155/dt3155_drv.c:1048: error: 'IRQF_SHARED' undeclared (first use in this function)
  drivers/staging/dt3155/dt3155_drv.c:1048: error: 'IRQF_DISABLED' undeclared (first use in this function)
  drivers/staging/dt3155/dt3155_drv.c:1091: error: implicit declaration of function 'free_irq'

so remove the #ifdef MODULE check since it's not needed.  Also remove
the CONFIG_PCI check since the Kconfig file already requires that.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Scott Smedley <ss@aao.gov.au>
Tested-by: Jan III Sobieski <jan3sobi3ski@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-04-22 07:20:00 -07:00
Linus Torvalds
5e31877b64 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
  security: testing the wrong variable in create_by_name()
  CRED: Fix a race in creds_are_invalid() in credentials debugging
  CRED: Fix double free in prepare_usermodehelper_creds() error handling
2010-04-22 07:17:09 -07:00
Dan Carpenter
b338cc8207 security: testing the wrong variable in create_by_name()
There is a typo here.  We should be testing "*dentry" instead of
"dentry".  If "*dentry" is an ERR_PTR, it gets dereferenced in either
mkdir() or create() which would cause an OOPs.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: James Morris <jmorris@namei.org>
2010-04-22 21:17:41 +10:00
David Howells
e134d200d5 CRED: Fix a race in creds_are_invalid() in credentials debugging
creds_are_invalid() reads both cred->usage and cred->subscribers and then
compares them to make sure the number of processes subscribed to a cred struct
never exceeds the refcount of that cred struct.

The problem is that this can cause a race with both copy_creds() and
exit_creds() as the two counters, whilst they are of atomic_t type, are only
atomic with respect to themselves, and not atomic with respect to each other.

This means that if creds_are_invalid() can read the values on one CPU whilst
they're being modified on another CPU, and so can observe an evolving state in
which the subscribers count now is greater than the usage count a moment
before.

Switching the order in which the counts are read cannot help, so the thing to
do is to remove that particular check.

I had considered rechecking the values to see if they're in flux if the test
fails, but I can't guarantee they won't appear the same, even if they've
changed several times in the meantime.

Note that this can only happen if CONFIG_DEBUG_CREDENTIALS is enabled.

The problem is only likely to occur with multithreaded programs, and can be
tested by the tst-eintr1 program from glibc's "make check".  The symptoms look
like:

	CRED: Invalid credentials
	CRED: At include/linux/cred.h:240
	CRED: Specified credentials: ffff88003dda5878 [real][eff]
	CRED: ->magic=43736564, put_addr=(null)
	CRED: ->usage=766, subscr=766
	CRED: ->*uid = { 0,0,0,0 }
	CRED: ->*gid = { 0,0,0,0 }
	CRED: ->security is ffff88003d72f538
	CRED: ->security {359, 359}
	------------[ cut here ]------------
	kernel BUG at kernel/cred.c:850!
	...
	RIP: 0010:[<ffffffff81049889>]  [<ffffffff81049889>] __invalid_creds+0x4e/0x52
	...
	Call Trace:
	 [<ffffffff8104a37b>] copy_creds+0x6b/0x23f

Note the ->usage=766 and subscr=766.  The values appear the same because
they've been re-read since the check was made.

Reported-by: Roland McGrath <roland@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
2010-04-22 09:14:29 +10:00
Linus Torvalds
1ef6ce7a34 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  m68knommu: allow 4 coldfire serial ports
  m68knommu: fix coldfire tcdrain
  m68knommu: remove a duplicate vector setting line for 68360
  Fix m68k-uclinux's rt_sigreturn trampoline
  m68knommu: correct the CC flags for Coldfire M5272 targets
  uclinux: error message when FLAT reloc symbol is invalid, v2
2010-04-21 12:33:12 -07:00
Linus Torvalds
458f8c895b Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6:
  mc13783-regulator: fix a memory leak in mc13783_regulator_remove
  regulator: Let drivers know when they use the stub API
2010-04-21 12:31:52 -07:00
Linus Torvalds
255f41c595 Merge git://git.kernel.org/pub/scm/linux/kernel/git/joern/logfs
* git://git.kernel.org/pub/scm/linux/kernel/git/joern/logfs:
  [LogFS] Split large truncated into smaller chunks
  [LogFS] Set s_bdi
  [LogFS] Prevent mempool_destroy NULL pointer dereference
  [LogFS] Move assertion
  [LogFS] Plug 8 byte information leak
  [LogFS] Prevent memory corruption on large deletes
  [LogFS] Remove unused method

Fix trivial conflict with added header includes in fs/logfs/super.c
2010-04-21 12:31:12 -07:00
Linus Torvalds
9befb55ef5 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6:
  jfs: add jfs specific ->setattr call
  jfs: fix diAllocExt error in resizing filesystem
  jfs_dmap.[ch]: trivial typo fix: s/heigth/height/g
2010-04-21 12:30:07 -07:00
Linus Torvalds
a486b0af79 Merge branch 'kvm-updates/2.6.34' of git://git.kernel.org/pub/scm/virt/kvm/kvm
* 'kvm-updates/2.6.34' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: Fix TSS size check for 16-bit tasks
  KVM: Add missing srcu_read_lock() for kvm_mmu_notifier_release()
  KVM: Increase NR_IOBUS_DEVS limit to 200
  KVM: fix the handling of dirty bitmaps to avoid overflows
  KVM: MMU: fix kvm_mmu_zap_page() and its calling path
  KVM: VMX: Save/restore rflags.vm correctly in real mode
  KVM: allow bit 10 to be cleared in MSR_IA32_MC4_CTL
  KVM: Don't spam kernel log when injecting exceptions due to bad cr writes
  KVM: SVM: Fix memory leaks that happen when svm_create_vcpu() fails
  KVM: take srcu lock before call to complete_pio()
2010-04-21 12:29:46 -07:00
Linus Torvalds
1519ae4dc7 Merge branch 'for-linus' of git://neil.brown.name/md
* 'for-linus' of git://neil.brown.name/md:
  md/raid5: allow for more than 2^31 chunks.
2010-04-21 12:28:44 -07:00
David Howells
083fd8b21a AFS: Don't pass error value to page_cache_release() in error handling
In the error handling in afs_mntpt_do_automount(), we pass an error
pointer to page_cache_release() if read_mapping_page() failed.  Instead,
we should extend the gotos around the error handling we don't need.

Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-04-21 12:27:43 -07:00
Jan Kiszka
e8861cfe2c KVM: x86: Fix TSS size check for 16-bit tasks
A 16-bit TSS is only 44 bytes long. So make sure to test for the correct
size on task switch.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2010-04-21 13:51:42 +03:00
Lai Jiangshan
eda2beda83 KVM: Add missing srcu_read_lock() for kvm_mmu_notifier_release()
I got this dmesg due to srcu_read_lock() is missing in
kvm_mmu_notifier_release().

===================================================
[ INFO: suspicious rcu_dereference_check() usage. ]
---------------------------------------------------
arch/x86/kvm/x86.h:72 invoked rcu_dereference_check() without protection!

other info that might help us debug this:

rcu_scheduler_active = 1, debug_locks = 0
2 locks held by qemu-system-x86/3100:
 :  (rcu_read_lock){.+.+..}, at: [<ffffffff810d73dc>] __mmu_notifier_release+0x38/0xdf
 :  (&(&kvm->mmu_lock)->rlock){+.+...}, at: [<ffffffffa0130a6a>] kvm_mmu_zap_all+0x21/0x5e [kvm]

stack backtrace:
Pid: 3100, comm: qemu-system-x86 Not tainted 2.6.34-rc3-22949-gbc8a97a-dirty 
Call Trace:
 [<ffffffff8106afd9>] lockdep_rcu_dereference+0xaa/0xb3
 [<ffffffffa0123a89>] unalias_gfn+0x56/0xab [kvm]
 [<ffffffffa0119600>] gfn_to_memslot+0x16/0x25 [kvm]
 [<ffffffffa012ffca>] gfn_to_rmap+0x17/0x6e [kvm]
 [<ffffffffa01300c1>] rmap_remove+0xa0/0x19d [kvm]
 [<ffffffffa0130649>] kvm_mmu_zap_page+0x109/0x34d [kvm]
 [<ffffffffa0130a7e>] kvm_mmu_zap_all+0x35/0x5e [kvm]
 [<ffffffffa0122870>] kvm_arch_flush_shadow+0x16/0x22 [kvm]
 [<ffffffffa01189e0>] kvm_mmu_notifier_release+0x15/0x17 [kvm]
 [<ffffffff810d742c>] __mmu_notifier_release+0x88/0xdf
 [<ffffffff810d73dc>] ? __mmu_notifier_release+0x38/0xdf
 [<ffffffff81040848>] ? exit_mm+0xe0/0x115
 [<ffffffff810c2cb0>] exit_mmap+0x2c/0x17e
 [<ffffffff8103c472>] mmput+0x2d/0xd4
 [<ffffffff81040870>] exit_mm+0x108/0x115
[...]

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2010-04-21 11:17:43 +03:00
Philippe De Muyter
2545cf6e94 m68knommu: allow 4 coldfire serial ports
Fix driver/serial/mcf.c for 4-ports coldfire's (e.g. MCF5484).

Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2010-04-21 14:56:00 +10:00
Philippe De Muyter
3732b68f22 m68knommu: fix coldfire tcdrain
Fix tcdrain on coldfire uarts.
Currently with coldfire uarts tcdrain returns without waiting for txempty,
because (tx)fifosize is 0.  Fix that and call uart_update_timeout when
setting the baud rate, otherwise tcdrain will wait for an half our :)
Also constify mcf_uart_ops.

Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2010-04-21 13:43:06 +10:00
Greg Ungerer
6ecaf44e62 m68knommu: remove a duplicate vector setting line for 68360
Remove a duplicate vector setting line for the 68360 interrupt
setup. Pointed out by Roel Kluin <roel.kluin@gmail.com>

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2010-04-21 13:43:06 +10:00
Maxim Kuvyrkov
760d6e7861 Fix m68k-uclinux's rt_sigreturn trampoline
Signed-off-by: Maxim Kuvyrkov <maxim@codesourcery.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2010-04-21 13:43:05 +10:00
Philip Nye
eb79cbe230 m68knommu: correct the CC flags for Coldfire M5272 targets
Signed-off-by: Philip Nye <philipn@engarts.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2010-04-21 13:28:49 +10:00
Jun Sun
d7dfee3f5d uclinux: error message when FLAT reloc symbol is invalid, v2
This patch fixes a cosmetic error in printk. Text segment and data/bss
segment are allocated from two different areas. It is not meaningful to
give the diff between them in the error reporting messages.

Signed-off-by: Jun Sun <jsun@junsun.net>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2010-04-21 13:28:49 +10:00
David Howells
eff30363c0 CRED: Fix double free in prepare_usermodehelper_creds() error handling
Patch 570b8fb505:

	Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
	Date:   Tue Mar 30 00:04:00 2010 +0100
	Subject: CRED: Fix memory leak in error handling

attempts to fix a memory leak in the error handling by making the offending
return statement into a jump down to the bottom of the function where a
kfree(tgcred) is inserted.

This is, however, incorrect, as it does a kfree() after doing put_cred() if
security_prepare_creds() fails.  That will result in a double free if 'error'
is jumped to as put_cred() will also attempt to free the new tgcred record by
virtue of it being pointed to by the new cred record.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
2010-04-21 09:20:35 +10:00
Joern Engel
b6349ac89e [LogFS] Split large truncated into smaller chunks
Truncate would do an almost limitless amount of work without invoking
the garbage collector in between.  Split it up into more manageable,
though still large, chunks.

Signed-off-by: Joern Engel <joern@logfs.org>
2010-04-20 21:44:10 +02:00
Linus Torvalds
05ce7bfe54 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: Convert __DQUOT_PARANOIA symbol to standard config option
2010-04-20 09:39:40 -07:00
Jan Kara
62af9b5205 quota: Convert __DQUOT_PARANOIA symbol to standard config option
Make __DQUOT_PARANOIA define from the old days a standard config option
and turn it off by default.

This gets rid of a quota warning about writes before quota is turned on
for systems with ext4 root filesystem. Currently there's no way to legally
solve this because /etc/mtab has to be written before quota is turned on
on most systems.

Signed-off-by: Jan Kara <jack@suse.cz>
2010-04-20 18:25:25 +02:00
Linus Torvalds
27ee896370 Merge branch 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6
* 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6:
  pcmcia: fix error handling in cm4000_cs.c
  drivers/pcmcia: Add missing local_irq_restore
  serial_cs: MD55x support (PCMCIA GPRS/EDGE modem) (kernel 2.6.33)
  pcmcia: avoid late calls to pccard_validate_cis
  pcmcia: fix ioport size calculation in rsrc_nonstatic
  pcmcia: re-start on MFC override
  pcmcia: fix io_probe due to parent (PCI) resources
  pcmcia: use previously assigned IRQ for all card functions
2010-04-20 09:21:19 -07:00
Linus Torvalds
ac8bf56430 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc64: Fix hardirq tracing in trap return path.
  sparc64: Use correct pt_regs in decode_access_size() error paths.
  sparc64: Fix PREEMPT_ACTIVE value.
  sparc64: Run NMIs on the hardirq stack.
  sparc64: Allocate sufficient stack space in ftrace stubs.
  sparc: Fix forgotten kmemleak headers inclusion
2010-04-20 09:20:55 -07:00
Linus Torvalds
34388d1c4f Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf: Fix unsafe frame rewinding with hot regs fetching
2010-04-20 09:20:23 -07:00
Linus Torvalds
186837ca3a 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:
  drm: delay vblank cleanup until after driver unload
2010-04-20 09:20:11 -07:00
Christoph Hellwig
4cecd935f6 x86: correctly wire up the newuname system call
Before commit e28cbf2293 ("improve
sys_newuname() for compat architectures") 64-bit x86 had a private
implementation of sys_uname which was just called sys_uname, which other
architectures used for the old uname.

Due to some merge issues with the uname refactoring patches we ended up
calling the old uname version for both the old and new system call
slots, which lead to the domainname filed never be set which caused
failures with libnss_nis.

Reported-and-tested-by: Andy Isaacson <adi@hexapodia.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-04-20 09:17:21 -07:00
Sridhar Samudrala
e80e2a60ff KVM: Increase NR_IOBUS_DEVS limit to 200
This patch increases the current hardcoded limit of NR_IOBUS_DEVS
from 6 to 200. We are hitting this limit when creating a guest with more
than 1 virtio-net device using vhost-net backend. Each virtio-net
device requires 2 such devices to service notifications from rx/tx queues.

Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2010-04-20 13:08:30 +03:00
Takuya Yoshikawa
87bf6e7de1 KVM: fix the handling of dirty bitmaps to avoid overflows
Int is not long enough to store the size of a dirty bitmap.

This patch fixes this problem with the introduction of a wrapper
function to calculate the sizes of dirty bitmaps.

Note: in mark_page_dirty(), we have to consider the fact that
  __set_bit() takes the offset as int, not long.

Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-04-20 13:06:55 +03:00