Commit Graph

190716 Commits

Author SHA1 Message Date
Dan Carpenter 714bc5ef3e musb: potential use after free
We assign "urb->hcpriv = qh;" a few lines down.  I'm pretty sure we
want it "urb->hcpriv" to be NULL not a freed value.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30 09:25:08 -07:00
Ajay Kumar Gupta 5e0e61afa5 musb: save and restore missing bus control register
Added the missing BUS_CONTROL register in musb
save/restore routines.

Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30 09:25:08 -07:00
Sergei Shtylyov 2f831751c5 MUSB: Blackfin: don't fake blackfin_interrupt() result
Commit a5073b5283 (musb_gadget: fix unhandled
endpoint 0 IRQs) misses this change to blackfin.c: stop faking successful
result of blackfin_interrupt() and emitting a debug message on an unhandled
interrupt.

Signed-off-by: Sergei Shtylyov <sshtylyov@mvista.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30 09:25:08 -07:00
Ajay Kumar Gupta 1e753451eb musb: fix power field to hold all possible values
MUSB can supply upto 500mA such as, AM3517 and OMAP3EVM Rev >=E and thus
the 'power' field has to hold values above 255.

Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30 09:25:07 -07:00
Julia Lawall c61fae964a serial: drivers/serial/pmac_zilog.c: add missing unlock
In an error handling case the lock is not unlocked.

A simplified version of the semantic patch that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@r exists@
expression E1;
identifier f;
@@

f (...) { <+...
* spin_lock_irqsave (E1,...);
... when != E1
* return ...;
...+> }
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30 09:20:34 -07:00
Ping Cheng d9901660b5 serial: 8250_pnp - add Fujitsu Wacom device
Add Fujitsu Wacom 1FGT Tablet PC device

Signed-off-by: Ping Cheng <pingc@wacom.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30 09:20:34 -07:00
Alan Cox a2d1e3516c tty: Fix regressions in the char driver conversion
This forgot to update a field in the old char drivers. The fact nobody
has basically noticed (except one mxser user) rather suggests most of these
drivers could go into the bitbucket.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: Jiri Slaby <jirislaby@gmail.com>
Cc: Dan Carpenter <error27@gmail.com>
Cc: Andreas Pretzsch <apr@cn-eng.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30 09:20:33 -07:00
Liang Li e67a807f3d x86: Fix 'reservetop=' functionality
When specifying the 'reservetop=0xbadc0de' kernel parameter,
the kernel will stop booting due to a early_ioremap bug that
relates to commit 8827247ff.

The root cause of boot failure problem is the value of
'slot_virt[i]' was initialized in setup_arch->early_ioremap_init().
But later in setup_arch, the function 'parse_early_param' will
modify 'FIXADDR_TOP' when 'reservetop=0xbadc0de' being specified.

The simplest fix might be use __fix_to_virt(idx0) to get updated
value of 'FIXADDR_TOP' in '__early_ioremap' instead of reference
old value from slot_virt[slot] directly.

Changelog since v0:

-v1: When reservetop being handled then FIXADDR_TOP get
     adjusted, Hence check prev_map then re-initialize slot_virt and
     PMD based on new FIXADDR_TOP.

-v2: place fixup_early_ioremap hence call early_ioremap_init in
     reserve_top_address  to re-initialize slot_virt and
     corresponding PMD when parse_reservertop

-v3: move fixup_early_ioremap out of reserve_top_address to make
     sure other clients of reserve_top_address like xen/lguest won't
     broken

Signed-off-by: Liang Li <liang.li@windriver.com>
Tested-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Wang Chen <wangchen@cn.fujitsu.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
LKML-Reference: <1272621711-8683-1-git-send-email-liang.li@windriver.com>
[ fixed three small cleanliness details in fixup_early_ioremap() ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-04-30 12:19:53 +02:00
Paul E. McKenney 8b46f88084 rcu: Fix RCU lockdep splat on freezer_fork path
Add an RCU read-side critical section to suppress this false
positive.

Located-by: Eric Paris <eparis@parisplace.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: laijs@cn.fujitsu.com
Cc: dipankar@in.ibm.com
Cc: mathieu.desnoyers@polymtl.ca
Cc: josh@joshtriplett.org
Cc: dvhltc@us.ibm.com
Cc: niv@us.ibm.com
Cc: peterz@infradead.org
Cc: rostedt@goodmis.org
Cc: Valdis.Kletnieks@vt.edu
Cc: dhowells@redhat.com
Cc: eric.dumazet@gmail.com
LKML-Reference: <1271880131-3951-2-git-send-email-paulmck@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-04-30 12:03:17 +02:00
Peter Zijlstra 8b08ca52f5 rcu: Fix RCU lockdep splat in set_task_cpu on fork path
Add an RCU read-side critical section to suppress this false
positive.

Located-by: Eric Paris <eparis@parisplace.org>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: laijs@cn.fujitsu.com
Cc: dipankar@in.ibm.com
Cc: mathieu.desnoyers@polymtl.ca
Cc: josh@joshtriplett.org
Cc: dvhltc@us.ibm.com
Cc: niv@us.ibm.com
Cc: peterz@infradead.org
Cc: rostedt@goodmis.org
Cc: Valdis.Kletnieks@vt.edu
Cc: dhowells@redhat.com
Cc: eric.dumazet@gmail.com
LKML-Reference: <1271880131-3951-1-git-send-email-paulmck@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-04-30 12:03:17 +02:00
Linus Torvalds 66f41d4c5c Linux 2.6.34-rc6 2010-04-29 20:02:05 -07:00
Linus Torvalds b18262eda3 Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb:
  kgdb: don't needlessly skip PAGE_USER test for Fsl booke
2010-04-29 20:01:42 -07:00
Linus Torvalds e97e7120eb Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
* 'for-linus' of git://oss.sgi.com/xfs/xfs:
  xfs: add a shrinker to background inode reclaim
2010-04-29 19:49:34 -07:00
Wufei 56151e7534 kgdb: don't needlessly skip PAGE_USER test for Fsl booke
The bypassing of this test is a leftover from 2.4 vintage
kernels, and is no longer appropriate, or even used by KGDB.
Currently KGDB uses probe_kernel_write() for all access to
memory via the KGDB core, so it can simply be deleted.

This fixes CVE-2010-1446.

CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: Paul Mackerras <paulus@samba.org>
CC: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Wufei <fei.wu@windriver.com>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
2010-04-29 21:41:44 -05:00
Linus Torvalds fed0a9c644 Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  exofs: Fix "add bdi backing to mount session" fall out
  fs: fs/super.c needs to include backing-dev.h for !CONFIG_BLOCK
2010-04-29 17:18:07 -07:00
Linus Torvalds 6bec11921a Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
  ARM: 6061/1: PL061 GPIO: Bug fix - setting gpio for HIGH_LEVEL interrupt is not working.
  ARM: 5957/1: ARM: RealView SD/MMC Card detection and write-protect using GPIOLIB
  ARM: 6030/1: KS8695: enable console
  ARM: 6060/1: PL061 GPIO: Setting gpio val after changing direction to OUT.
  ARM: 6059/1: PL061 GPIO: Changing *_irq_chip_data with *_irq_data for real irqs.
  ARM: 6023/1: update bcmring_defconfig to latest version and fix build error
  ARM: fix build error in arch/arm/kernel/process.c
2010-04-29 17:17:35 -07:00
Linus Torvalds 553cbf0a8f Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/ps3: Update ps3_defconfig
  powerpc/ps3: Update platform maintainer
  powerpc/pseries: Flush lazy kernel mappings after unplug operations
  powerpc/numa: Add form 1 NUMA affinity
  powerpc/fsl-booke: Fix CONFIG_RELOCATABLE support on FSL Book-E ppc32
  powerpc: 2.6.34 update of defconfigs for embedded 6xx/7xxx, 8xx, 8xxx
  powerpc/mpc8xxx defconfigs - turn off SYSFS_DEPRECATED
  powerpc/83xx: configure SIL SATA driver in 83xx-wide defconfig
  powerpc/83xx: enable EPOLL syscall in defconfig
  powerpc/83xx: add RTC drivers in 83xx defconfig
  powerpc/fsl-cpm: Configure clock correctly for SCC
  powerpc/fsl_booke: Correct test for MMU_FTR_BIG_PHYS
  powerpc/85xx/86xx: Fix build w/ CONFIG_PCI=n
2010-04-29 17:16:36 -07:00
Hector Palacios 95b1ed2ac7 spi: spidev_test gives error upon 1-byte transfer
The sample application spidev_test.c is using SPI_IOC_MESSAGE ioctl to do
an SPI transfer.  This ioctl returns the number of bytes successfully
transmitted or a negative error code upon erroneous completion.  The
application however is returning an error if the result of the ioclt if
the return value is 1.  This makes the application to fail upon 1-byte
length transfers.

Signed-off-by: Hector Palacios <hector.palacios@digi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-04-29 16:40:30 -06:00
viresh kumar db7e1bc479 ARM: 6061/1: PL061 GPIO: Bug fix - setting gpio for HIGH_LEVEL interrupt is not working.
In current implementation of PL061, setting type of irq to HIGH_LEVEL is not
working. This patch fixes this bug.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Acked-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-04-29 23:23:49 +01:00
Dave Chinner 9bf729c0af xfs: add a shrinker to background inode reclaim
On low memory boxes or those with highmem, kernel can OOM before the
background reclaims inodes via xfssyncd. Add a shrinker to run inode
reclaim so that it inode reclaim is expedited when memory is low.

This is more complex than it needs to be because the VM folk don't
want a context added to the shrinker infrastructure. Hence we need
to add a global list of XFS mount structures so the shrinker can
traverse them.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
2010-04-29 16:22:13 -05:00
Boaz Harrosh 3c2023dd8e exofs: Fix "add bdi backing to mount session" fall out
The patch: add bdi backing to mount session
	(b3d0ab7e60)

Has a bug in the placement of the bdi member at
struct exofs_sb_info. The layout member must be kept
last.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2010-04-29 20:35:29 +02:00
Jens Axboe 5477d0face fs: fs/super.c needs to include backing-dev.h for !CONFIG_BLOCK
When CONFIG_BLOCK is set, it ends up getting backing-dev.h included.
But for !CONFIG_BLOCK, it isn't so lucky. The proper thing to do is
include <linux/backing-dev.h> directly from the file it's used from,
so do that.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2010-04-29 20:33:35 +02:00
Linus Torvalds 27fb8d7b1f Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6:
  nfs: fix memory leak in nfs_get_sb with CONFIG_NFS_V4
  nfs: fix some issues in nfs41_proc_reclaim_complete()
  NFS: Ensure that nfs_wb_page() waits for Pg_writeback to clear
  NFS: Fix an unstable write data integrity race
  nfs: testing for null instead of ERR_PTR()
  NFS: rsize and wsize settings ignored on v4 mounts
  NFSv4: Don't attempt an atomic open if the file is a mountpoint
  SUNRPC: Fix a bug in rpcauth_prune_expired
2010-04-29 10:23:44 -07:00
Arnd Bergmann f80a0ca6ad pktcdvd: improve BKL and compat_ioctl.c usage
The pktcdvd driver uses proper locking and does not need the BKL in the
ioctl and llseek functions of the character device, so kill both.

Moving the compat_ioctl handling from common code into the driver itself
fixes build problems when CONFIG_BLOCK is disabled.

Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-04-29 08:44:37 -07:00
Boaz Harrosh a36fed12a4 exofs: Fix "add bdi backing to mount session" fall out
Commit b3d0ab7e60 ("exofs: add bdi backing
to mount session") has a bug in the placement of the bdi member at
struct exofs_sb_info.  The layout member must be kept last.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-04-29 07:59:16 -07:00
Linus Torvalds dfad53d48e Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-tip:
  x86: Disable large pages on CPUs with Atom erratum AAE44
  x86-64: Clear a 64-bit FS/GS base on fork if selector is nonzero
  x86, mrst: Conditionally register cpu hotplug notifier for apbt
2010-04-28 20:41:55 -07:00
Linus Torvalds 79dba2eaa7 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
  x86/PCI: compute Address Space length rather than using _LEN
  x86/PCI: never allocate PCI MMIO resources below BIOS_END
2010-04-28 20:40:17 -07:00
Al Viro d9e80b7de9 nfs d_revalidate() is too trigger-happy with d_drop()
If dentry found stale happens to be a root of disconnected tree, we
can't d_drop() it; its d_hash is actually part of s_anon and d_drop()
would simply hide it from shrink_dcache_for_umount(), leading to
all sorts of fun, including busy inodes on umount and oopsen after
that.

Bug had been there since at least 2006 (commit c636eb already has it),
so it's definitely -stable fodder.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-04-28 20:40:03 -07:00
Colin Tuckley b56ba8aa6f ARM: 5957/1: ARM: RealView SD/MMC Card detection and write-protect using GPIOLIB
The switch to using GPIOLIB broke the sd/mmc card detection on the
RealView development boards if GPIO_PL061 was not selected.
This patch selects GPIO_PL061 if GPIOLIB is selected.
The sense of the return value from mmc_status has also changed
and is corrected.

Signed-off-by: Colin Tuckley <colin.tuckley@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-04-28 22:21:52 +01:00
Linus Torvalds 1d16b0f2f3 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:
  regulator: fix enabling regulator issue on max8925
2010-04-28 13:37:31 -07:00
Linus Torvalds 032b734d29 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (27 commits)
  sfc: Change falcon_probe_board() to fail for unsupported boards
  sfc: Always close net device at the end of a disabling reset
  sfc: Wait at most 10ms for the MC to finish reading out MAC statistics
  sctp: Fix oops when sending queued ASCONF chunks
  sctp: fix to calc the INIT/INIT-ACK chunk length correctly is set
  sctp: per_cpu variables should be in bh_disabled section
  sctp: fix potential reference of a freed pointer
  sctp: avoid irq lock inversion while call sk->sk_data_ready()
  Revert "tcp: bind() fix when many ports are bound"
  net/usb: add sierra_net.c driver
  cdc_ether: fix autosuspend for mbm devices
  bluetooth: handle l2cap_create_connless_pdu() errors
  gianfar: Wait for both RX and TX to stop
  ipheth: potential null dereferences on error path
  smc91c92_cs: spin_unlock_irqrestore before calling smc_interrupt()
  drivers/usb/net/kaweth.c: add device "Allied Telesyn AT-USB10 USB Ethernet Adapter"
  bnx2: Update version to 2.0.9.
  bnx2: Prevent "scheduling while atomic" warning with cnic, bonding and vlan.
  bnx2: Fix lost MSI-X problem on 5709 NICs.
  cxgb3: Wait longer for control packets on initialization
  ...
2010-04-28 13:37:06 -07:00
Ben Hutchings e41c11ee0c sfc: Change falcon_probe_board() to fail for unsupported boards
The driver needs specific PHY and board support code for each SFC4000
board; there is no point trying to continue if it is missing.
Currently unsupported boards can trigger an 'oops'.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Cc: stable@kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-28 12:18:27 -07:00
Ben Hutchings f49a4589e9 sfc: Always close net device at the end of a disabling reset
This fixes a regression introduced by commit
eb9f6744cb "sfc: Implement ethtool
reset operation".

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Cc: stable@kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-28 12:18:26 -07:00
Ben Hutchings aabc564907 sfc: Wait at most 10ms for the MC to finish reading out MAC statistics
The original code would wait indefinitely if MAC stats DMA failed.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Cc: stable@kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-28 12:18:26 -07:00
Vlad Yasevich c078669340 sctp: Fix oops when sending queued ASCONF chunks
When we finish processing ASCONF_ACK chunk, we try to send
the next queued ASCONF.  This action runs the sctp state
machine recursively and it's not prepared to do so.

kernel BUG at kernel/timer.c:790!
invalid opcode: 0000 [#1] SMP
last sysfs file: /sys/module/ipv6/initstate
Modules linked in: sha256_generic sctp libcrc32c ipv6 dm_multipath
uinput 8139too i2c_piix4 8139cp mii i2c_core pcspkr virtio_net joydev
floppy virtio_blk virtio_pci [last unloaded: scsi_wait_scan]

Pid: 0, comm: swapper Not tainted 2.6.34-rc4 #15 /Bochs
EIP: 0060:[<c044a2ef>] EFLAGS: 00010286 CPU: 0
EIP is at add_timer+0xd/0x1b
EAX: cecbab14 EBX: 000000f0 ECX: c0957b1c EDX: 03595cf4
ESI: cecba800 EDI: cf276f00 EBP: c0957aa0 ESP: c0957aa0
 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Process swapper (pid: 0, ti=c0956000 task=c0988ba0 task.ti=c0956000)
Stack:
 c0957ae0 d1851214 c0ab62e4 c0ab5f26 0500ffff 00000004 00000005 00000004
<0> 00000000 d18694fd 00000004 1666b892 cecba800 cecba800 c0957b14
00000004
<0> c0957b94 d1851b11 ceda8b00 cecba800 cf276f00 00000001 c0957b14
000000d0
Call Trace:
 [<d1851214>] ? sctp_side_effects+0x607/0xdfc [sctp]
 [<d1851b11>] ? sctp_do_sm+0x108/0x159 [sctp]
 [<d1863386>] ? sctp_pname+0x0/0x1d [sctp]
 [<d1861a56>] ? sctp_primitive_ASCONF+0x36/0x3b [sctp]
 [<d185657c>] ? sctp_process_asconf_ack+0x2a4/0x2d3 [sctp]
 [<d184e35c>] ? sctp_sf_do_asconf_ack+0x1dd/0x2b4 [sctp]
 [<d1851ac1>] ? sctp_do_sm+0xb8/0x159 [sctp]
 [<d1863334>] ? sctp_cname+0x0/0x52 [sctp]
 [<d1854377>] ? sctp_assoc_bh_rcv+0xac/0xe1 [sctp]
 [<d1858f0f>] ? sctp_inq_push+0x2d/0x30 [sctp]
 [<d186329d>] ? sctp_rcv+0x797/0x82e [sctp]

Tested-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: Yuansong Qiao <ysqiao@research.ait.ie>
Signed-off-by: Shuaijun Zhang <szhang@research.ait.ie>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-28 12:16:34 -07:00
Wei Yongjun a8170c35e7 sctp: fix to calc the INIT/INIT-ACK chunk length correctly is set
When calculating the INIT/INIT-ACK chunk length, we should not
only account the length of parameters, but also the parameters
zero padding length, such as AUTH HMACS parameter and CHUNKS
parameter. Without the parameters zero padding length we may get
following oops.

skb_over_panic: text:ce2068d2 len:130 put:6 head:cac3fe00 data:cac3fe00 tail:0xcac3fe82 end:0xcac3fe80 dev:<NULL>
------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:127!
invalid opcode: 0000 [#2] SMP
last sysfs file: /sys/module/aes_generic/initstate
Modules linked in: authenc ......

Pid: 4102, comm: sctp_darn Tainted: G      D    2.6.34-rc2 #6
EIP: 0060:[<c0607630>] EFLAGS: 00010282 CPU: 0
EIP is at skb_over_panic+0x37/0x3e
EAX: 00000078 EBX: c07c024b ECX: c07c02b9 EDX: cb607b78
ESI: 00000000 EDI: cac3fe7a EBP: 00000002 ESP: cb607b74
 DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
Process sctp_darn (pid: 4102, ti=cb607000 task=cabdc990 task.ti=cb607000)
Stack:
 c07c02b9 ce2068d2 00000082 00000006 cac3fe00 cac3fe00 cac3fe82 cac3fe80
<0> c07c024b cac3fe7c cac3fe7a c0608dec ca986e80 ce2068d2 00000006 0000007a
<0> cb8120ca ca986e80 cb812000 00000003 cb8120c4 ce208a25 cb8120ca cadd9400
Call Trace:
 [<ce2068d2>] ? sctp_addto_chunk+0x45/0x85 [sctp]
 [<c0608dec>] ? skb_put+0x2e/0x32
 [<ce2068d2>] ? sctp_addto_chunk+0x45/0x85 [sctp]
 [<ce208a25>] ? sctp_make_init+0x279/0x28c [sctp]
 [<c0686a92>] ? apic_timer_interrupt+0x2a/0x30
 [<ce1fdc0b>] ? sctp_sf_do_prm_asoc+0x2b/0x7b [sctp]
 [<ce202823>] ? sctp_do_sm+0xa0/0x14a [sctp]
 [<ce2133b9>] ? sctp_pname+0x0/0x14 [sctp]
 [<ce211d72>] ? sctp_primitive_ASSOCIATE+0x2b/0x31 [sctp]
 [<ce20f3cf>] ? sctp_sendmsg+0x7a0/0x9eb [sctp]
 [<c064eb1e>] ? inet_sendmsg+0x3b/0x43
 [<c04244b7>] ? task_tick_fair+0x2d/0xd9
 [<c06031e1>] ? sock_sendmsg+0xa7/0xc1
 [<c0416afe>] ? smp_apic_timer_interrupt+0x6b/0x75
 [<c0425123>] ? dequeue_task_fair+0x34/0x19b
 [<c0446abb>] ? sched_clock_local+0x17/0x11e
 [<c052ea87>] ? _copy_from_user+0x2b/0x10c
 [<c060ab3a>] ? verify_iovec+0x3c/0x6a
 [<c06035ca>] ? sys_sendmsg+0x186/0x1e2
 [<c042176b>] ? __wake_up_common+0x34/0x5b
 [<c04240c2>] ? __wake_up+0x2c/0x3b
 [<c057e35c>] ? tty_wakeup+0x43/0x47
 [<c04430f2>] ? remove_wait_queue+0x16/0x24
 [<c0580c94>] ? n_tty_read+0x5b8/0x65e
 [<c042be02>] ? default_wake_function+0x0/0x8
 [<c0604e0e>] ? sys_socketcall+0x17f/0x1cd
 [<c040264c>] ? sysenter_do_call+0x12/0x22
Code: 0f 45 de 53 ff b0 98 00 00 00 ff b0 94 ......
EIP: [<c0607630>] skb_over_panic+0x37/0x3e SS:ESP 0068:cb607b74

To reproduce:

# modprobe sctp
# echo 1 > /proc/sys/net/sctp/addip_enable
# echo 1 > /proc/sys/net/sctp/auth_enable
# sctp_test -H 3ffe:501:ffff💯20c:29ff:fe4d:f37e -P 800 -l
# sctp_darn -H 3ffe:501:ffff💯20c:29ff:fe4d:f37e -P 900 -h 192.168.0.21 -p 800 -I -s -t
sctp_darn ready to send...
3ffe:501:ffff💯20c:29ff:fe4d:f37e:900-192.168.0.21:800 Interactive mode> bindx-add=192.168.0.21
3ffe:501:ffff💯20c:29ff:fe4d:f37e:900-192.168.0.21:800 Interactive mode> bindx-add=192.168.1.21
3ffe:501:ffff💯20c:29ff:fe4d:f37e:900-192.168.0.21:800 Interactive mode> snd=10

------------------------------------------------------------------
eth0 has addresses: 3ffe:501:ffff💯20c:29ff:fe4d:f37e and 192.168.0.21
eth1 has addresses: 192.168.1.21
------------------------------------------------------------------

Reported-by: George Cheimonidis <gchimon@gmail.com>
Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-28 12:16:33 -07:00
Vlad Yasevich 81419d862d sctp: per_cpu variables should be in bh_disabled section
Since the change of the atomics to percpu variables, we now
have to disable BH in process context when touching percpu variables.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-28 12:16:33 -07:00
Vlad Yasevich 0c42749cff sctp: fix potential reference of a freed pointer
When sctp attempts to update an assocition, it removes any
addresses that were not in the updated INITs.  However, the loop
may attempt to refrence a transport with address after removing it.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-28 12:16:32 -07:00
Wei Yongjun 561b1733a4 sctp: avoid irq lock inversion while call sk->sk_data_ready()
sk->sk_data_ready() of sctp socket can be called from both BH and non-BH
contexts, but the default sk->sk_data_ready(), sock_def_readable(), can
not be used in this case. Therefore, we have to make a new function
sctp_data_ready() to grab sk->sk_data_ready() with BH disabling.

=========================================================
[ INFO: possible irq lock inversion dependency detected ]
2.6.33-rc6 #129
---------------------------------------------------------
sctp_darn/1517 just changed the state of lock:
 (clock-AF_INET){++.?..}, at: [<c06aab60>] sock_def_readable+0x20/0x80
but this lock took another, SOFTIRQ-unsafe lock in the past:
 (slock-AF_INET){+.-...}

and interrupts could create inverse lock ordering between them.

other info that might help us debug this:
1 lock held by sctp_darn/1517:
 #0:  (sk_lock-AF_INET){+.+.+.}, at: [<cdfe363d>] sctp_sendmsg+0x23d/0xc00 [sctp]

Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-28 12:16:31 -07:00
David S. Miller 8d238b25b1 Revert "tcp: bind() fix when many ports are bound"
This reverts two commits:

fda48a0d7a
tcp: bind() fix when many ports are bound

and a follow-on fix for it:

6443bb1fc2
ipv6: Fix inet6_csk_bind_conflict()

It causes problems with binding listening sockets when time-wait
sockets from a previous instance still are alive.

It's too late to keep fiddling with this so late in the -rc
series, and we'll deal with it in net-next-2.6 instead.

Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-28 11:25:59 -07:00
Xiaotian Feng 9699eda6bc nfs: fix memory leak in nfs_get_sb with CONFIG_NFS_V4
With CONFIG_NFS_V4 and data version 4, nfs_get_sb will allocate memory for
export_path in nfs4_validate_text_mount_data, so we need to free it then.
This is addressed in following kmemleak report:

unreferenced object 0xffff88016bf48a50 (size 16):
  comm "mount.nfs", pid 22567, jiffies 4651574704 (age 175471.200s)
  hex dump (first 16 bytes):
    2f 6f 70 74 2f 77 6f 72 6b 00 6b 6b 6b 6b 6b a5  /opt/work.kkkkk.
  backtrace:
    [<ffffffff814b34f9>] kmemleak_alloc+0x60/0xa7
    [<ffffffff81102c76>] kmemleak_alloc_recursive.clone.5+0x1b/0x1d
    [<ffffffff811046b3>] __kmalloc_track_caller+0x18f/0x1b7
    [<ffffffff810e1b08>] kstrndup+0x37/0x54
    [<ffffffffa0336971>] nfs_parse_devname+0x152/0x204 [nfs]
    [<ffffffffa0336af3>] nfs4_validate_text_mount_data+0xd0/0xdc [nfs]
    [<ffffffffa0338deb>] nfs_get_sb+0x325/0x736 [nfs]
    [<ffffffff81113671>] vfs_kern_mount+0xbd/0x17c
    [<ffffffff81113798>] do_kern_mount+0x4d/0xed
    [<ffffffff81129a87>] do_mount+0x787/0x7fe
    [<ffffffff81129b86>] sys_mount+0x88/0xc2
    [<ffffffff81009b42>] system_call_fastpath+0x16/0x1b

Signed-off-by: Xiaotian Feng <dfeng@redhat.com>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: Chuck Lever <chuck.lever@oracle.com>
Cc: Benny Halevy <bhalevy@panasas.com>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Andy Adamson <andros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-04-28 13:46:28 -04:00
Dan Carpenter acf82b85a7 nfs: fix some issues in nfs41_proc_reclaim_complete()
The original code passed an ERR_PTR() to rpc_put_task() and instead of
returning zero on success it returned -ENOMEM.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-04-28 13:45:12 -04:00
Bjorn Helgaas 48728e0774 x86/PCI: compute Address Space length rather than using _LEN
ACPI _CRS Address Space Descriptors have _MIN, _MAX, and _LEN.  Linux has
been computing Address Spaces as [_MIN to _MIN + _LEN - 1].  Based on the
tests in the bug reports below, Windows apparently uses [_MIN to _MAX].

Per spec (ACPI 4.0, Table 6-40), for _CRS fixed-size, fixed location
descriptors, "_LEN must be (_MAX - _MIN + 1)", and when that's true, it
doesn't matter which way we compute the end.  But of course, there are
BIOSes that don't follow this rule, and we're better off if Linux handles
those exceptions the same way as Windows.

This patch makes Linux use [_MIN to _MAX], as Windows seems to do.  This
effectively reverts d558b483d5 and 03db42adfe and replaces them with
simpler code.

    https://bugzilla.kernel.org/show_bug.cgi?id=14337 (round)
    https://bugzilla.kernel.org/show_bug.cgi?id=15480 (truncate)

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-04-28 09:17:45 -07:00
Linus Torvalds 3fb938b2a8 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 matching rules for pseudo-multi-function cards
  pcmcia: pcmcia_dev_present bugfix
2010-04-28 07:58:36 -07:00
Linus Torvalds 970b06485f Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  coda: move backing-dev.h kernel include inside __KERNEL__
  mtd: ensure that bdi entries are properly initialized and registered
  Move mtd_bdi_*mappable to mtdcore.c
  btrfs: convert to using bdi_setup_and_register()
  Catch filesystems lacking s_bdi
  drbd: Terminate a connection early if sending the protocol fails
  drbd: fix memory leak
  Fix JFFS2 sync silent failure
  smbfs: add bdi backing to mount session
  ncpfs: add bdi backing to mount session
  exofs: add bdi backing to mount session
  ecryptfs: add bdi backing to mount session
  coda: add bdi backing to mount session
  cifs: add bdi backing to mount session
  afs: add bdi backing to mount session.
  9p: add bdi backing to mount session
  bdi: add helper function for doing init and register of a bdi for a file system
  block: ensure jiffies wrap is handled correctly in blk_rq_timed_out_timer
2010-04-28 07:56:05 -07:00
Linus Torvalds 696e65c360 Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
  watchdog: booke_wdt: fix build - unconstify watchdog_info
  watchdog: sbc_fitpc2_wdt: fixed "scheduling while atomic" bug.
  watchdog: sbc_fitpc2_wdt: fixed I/O operations order
  Watchdog: sb_wdog.c: Fix sibyte watchdog initialization
2010-04-28 07:55:35 -07:00
Haojian Zhuang 4b99fef025 regulator: fix enabling regulator issue on max8925
Fix regulator enabling issue that is caused by typo error in is_enabled().

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-04-28 15:24:34 +01:00
Dan Carpenter a1c4560d4d drivers/gpu/drm/drm_sysfs.c: sysfs files error handling
In the original code we used "j" as an iterator but we used "i" as an
index.

-               for (j = 0; j < i; j++)
-                       device_remove_file(&connector->kdev,
-                                          &connector_attrs[i]);

Smatch complained about that because "i" was potentially passed the end of
the array.  Which makes sense if we should be using "j" there.

I also thought that we should remove the files for &connector_attrs_opt1
but to do that I had to add separate iterators for &connector_attrs and
&connector_attrs_opt1.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-04-28 18:42:52 +10:00
Dan Carpenter 0031c41be5 drivers/gpu/drm/radeon/radeon_atombios.c: range check issues
This change makes the array larger, "MAX_SUPPORTED_TV_TIMING_V1_2" is 3
and the original size "MAX_SUPPORTED_TV_TIMING" is 2.

Also there were checks that were off by one.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-04-28 18:41:54 +10:00
Jiri Slaby 8c88e50bcf gpu: vga_switcheroo, fix lock imbalance
Stanse found that one error path in vga_switcheroo_debugfs_write omits to
unlock vgasr_mutex.  Fix that.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-04-28 18:41:52 +10:00