Fix bug reported by Andrew de Quincey:
After cold boot the saa7146 DMA did not start if the demuxer was opened
before the frontend has locked to the signal.
DMA transfers will be started now if (and only if)
the frontend is locked and data should be sent to the demuxer.
Signed-off-by: NOliver Endriss <o.endriss@gmx.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Check __must_check warnings for class_device_register and class_device_create_file

video_device_create_file was declared as a void, but instead should
return the int value of class_device_create_file.

Move the check from bttv-driver.c into v4l2-dev.h, because all other
callers of video_device_create_file must also be checked.

Replace the call to class_device_create_file in videodev.c with
video_device_create_file, as defined in v4l2-dev.h, so that the
return value of class_device_create_file will be checked.

Check the return value of class_device_register in videodev.c and
pvrusb2-sysfs.c
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

With the LG H06xF tuners, an auxiliary byte must be sent after the
standard four-byte i2c sequence. The code that does this is currently in
the wrong place, causing random bytes to be written to the tuner over
i2c in the set_type function.
This patch moves this code from set_type to default_set_tv_freq.
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Fix keycode calculations (all codes for this remote were wrong due to a
lost + sign)
Signed-off-by: NRicardo Cerqueira <v4l@cerqueira.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Two different exports with the same name are not a good idea:
$ grep -r EXPORT_SYMBOL\(dmasound_init\) *
drivers/media/video/saa7134/saa7134-core.c:EXPORT_SYMBOL(dmasound_init);
sound/oss/dmasound/dmasound_core.c:EXPORT_SYMBOL(dmasound_init);
$ 
This patch renames the saa7134 dmasound_{init,exit} to 
saa7134_dmasound_{init,exit}.
Signed-off-by: NAdrian Bunk <bunk@stusta.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

This patch just sets the option noninterlaced to 1 by default since
it has no known disadvantages. It is still possibe to get the old
behaviour by setting noninterlaced=0.
Signed-off-by: NHartmut Hackmann <hartmut.hackmann@t-online.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

To prevent autoloading of the driver, as it then conflicts with every other
saa7146 device in existence.
Signed-off-by: NAndrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Fix typo in comment for TDA9819
Signed-off-by: NMarco Schluessler <marco@lordzodiac.de>
Signed-off-by: NAndrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

It was pointed out on the mailing list that this PLL definition is broken. I
went back to the original dibusb driver and confirmed it used to use these
settings, as well as consulting the datasheet.
Signed-off-by: NAndrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Use the stv0299 native DISEQC implementation instead of the bitbanging one
as required by the ves1893. This was originally found by Oliver Endriss.
Signed-off-by: NAndrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: NOliver Endriss <o.endriss@gmx.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

The changes to add frontend reinitialisation moved the position where the
init() op is called into the frontend thread. Unfortunately, since DISEQC
operations do not use the frontend thread, this meant that DISEQC could be
called against an uninitalised frontend, leading to all sorts of trouble.
Patch fixes this by reinstating the original fronted intialisation call.
Signed-off-by: NAndrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Some cards have multiple possible addresses for their PLLs, with no other
way to tell if a PLL is present or not apart from probing to see if an i2c
device is present. This adds a quick check to see if an i2c device is
present at the given i2c address.
Signed-off-by: NAndrew de Quincey <adq_dvb@lidskialf.net>
Acked-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  [libata] sata_promise: comment out duplicate PCI ID
  [PATCH] libata: improve EH action and EHI flag handling
  [PATCH] libata: fix eh_skip_recovery condition
  [PATCH] libata: fix autopsy ehc->i.action and ehc->i.dev handling

Merge branch 'upstream' of git://electric-eye.fr.zoreil.com/home/romieu/linux-2.6 into upstream-fixes

Okay, Fix both typo's in one patch .The impact is that the incorrect value
was being computed for blinking LED and interrupt moderation values.
Signed-off-by: NStephen Hemminger <shemminger@osdl.org>
Signed-off-by: NJeff Garzik <jeff@garzik.org>

Always do a dummy RDMA after loading the firmware to work around
buggy PCIe chipsets which do not implement resending properly.
This is so cheap as to be almost free, and should never have been
conditional on the tx boundary != 4096.
Signed-off-by: NBrice Goglin <brice@myri.com>
Signed-off-by: NJeff Garzik <jeff@garzik.org>

Merge branch 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 into upstream-fixes

Fix robust PI-futexes to be properly unlocked on unexpected exit.

For this to work the kernel has to know whether a futex is a PI or a
non-PI one, because the semantics are different.  Since the space in
relevant glibc data structures is extremely scarce, the best solution is
to encode the 'PI' information in bit 0 of the robust list pointer.
Existing (non-PI) glibc robust futexes have this bit always zero, so the
ABI is kept.  New glibc with PI-robust-futexes will set this bit.

Further fixes from Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NUlrich Drepper <drepper@redhat.com>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Fix pi_state->list handling bugs: list handling mishap, locking error.
Plus add more debug checks and fix a few style issues i noticed while
debugging this.

(reported by Ulrich Drepper and Jakub Jelinek.)
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Similar patch to earlier x86-64 patch. When the dwarf2 unwinder fails
dump the left over stack with the old unwinder.

Also some clarifications in the headers.
Signed-off-by: NAndi Kleen <ak@suse.de>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Signed-off-by: NAndi Kleen <ak@suse.de>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

The dwarf2 unwinder currently often gets stuck because a lot
of assembly code doesn't have proper dwarf2 annotiation yet.

This currently often happens with __down. Should fix this by
adding proper dwarf2 annotation to all inline assembly. However
until that's done we need a quick fix for 2.6.18 to avoid
incomplete backtraces.

So when this happens dump the rest of the stack with the old unwinder
instead of silently not dumping it. There was already a optional
"both" mode that dumped both, but that was too ugly.

I also clarified the headers for the different backtraces a bit.

Also add a clear error message for missing dwarf2
annotation that people can work on.

And I removed a dead variable left over from Ingo's changes.

Cc: mingo@elte.hu
Cc: jbeulich@novell.com
Signed-off-by: NAndi Kleen <ak@suse.de>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

In x86_64 platform, INT1 and INT3 trap stack is IST stack called DEBUG_STACK,
when INT1/INT3 trap happens, system will switch to DEBUG_STACK by hardware.
Current DEBUG_STACK size is 4K, when int1/int3 trap happens, kernel will
minus current DEBUG_STACK IST value by 4k. But if int3/int1 trap is nested,
it will destroy other vector's IST stack. This patch modifies this, it sets
DEBUG_STACK size as 8K and allows two level of nested int1/int3 trap.

Kprobe DEBUG_STACK may be nested, because kprobe handler may be probed
by other kprobes.

Thanks jbeulich for pointing out error in the first patch.

[AK: nested kprobes are pretty dubious. Hopefully one nest
will be enough. This will cost 8K per CPU (4K more than before)]
Signed-off-by: Nbibo, mao <bibo.mao@intel.com>
Signed-off-by: NAndi Kleen <ak@suse.de>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

When int 0x80 is called from long mode r8-r11 would leak out of the
kernel (or rather they would be filled with some values from
the kernel stack). I don't think it's a security issue because
the values come from the fixed stack frame which should be near
always user registers from a previous interrupt.

Still better fix it.

Longer term the register save macros need to be cleaned up
to avoid such mistakes in the future.

Original analysis from Richard Brunner, fix by me.

Cc: Richard.Brunner@amd.com
Signed-off-by: NAndi Kleen <ak@suse.de>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Fixes a obscure user space triggerable crash during oprofiling.

Oprofile calls profile_pc from NMIs even when user_mode(regs) is not true and
the program counter is inside the kernel lock section. This opens
a race - when a user program jumps to a kernel lock address and
a NMI happens before the illegal page fault exception is raised
and the program has a unmapped esp or ebp then the kernel could
oops. NMIs have a higher priority than exceptions so that could
happen.

Add user_mode checks to i386/x86-64 profile_pc to prevent that.

Cc: John Levon <levon@movementarian.org>
Signed-off-by: NAndi Kleen <ak@suse.de>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
  [S390] update default configuration
  [S390] duplicate ccw devices in ccwgroup.
  [S390] permanent subchannel busy conditions may cause I/O stall

* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SUNLANCE]: fix compilation on sparc-UP
  [SPARC]: Defer clock_probe to fs_initcall()
  [SPARC64]: Fix typo in pgprot_noncached().
  [SPARC64]: Fix quad-float multiply emulation.

* git://oss.sgi.com:8090/nathans/xfs-rc-2.6:
  [XFS] Ensure bulkstat from an invalid inode number gets caught always with
  [XFS] Fix a barrier related forced shutdown on mounts with quota enabled.
  [XFS] Fix remount vs no/barrier options by ensuring we clear unwanted
  [XFS] All xfs_disk_dquot_t values are (as the name says) disk endian.

* 'for-linus' of git://brick.kernel.dk/data/git/linux-2.6-block:
  [PATCH] scsi: kill overeager "not-ready" messages
  [PATCH] it821x: fix ide dma setup bug
  [PATCH] ide: if the id fields looks screwy, disable DMA
  [PATCH] ide: option to disable cache flushes for buggy drives

Recent changes in i386 __switch_to() have a misplaced closing
parenthesis causing an unlikely() to terminate early.
Signed-off-by: NChuck Ebbert <76306.1226@compuserve.com>
Acked-by: NSteven Rostedt <rostedt@goodmis.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

EINVAL.

SGI-PV: 953819
SGI-Modid: xfs-linux-melb:xfs-kern:26629a
Signed-off-by: NNathan Scott <nathans@sgi.com>

SGI-PV: 912426
SGI-Modid: xfs-linux-melb:xfs-kern:26622a
Signed-off-by: NNathan Scott <nathans@sgi.com>

flags from iclog buffers before submitting them for writing.

SGI-PV: 954772
SGI-Modid: xfs-linux-melb:xfs-kern:26605a
Signed-off-by: NNathan Scott <nathans@sgi.com>

Before putting them into struct statfs they should be endian-swapped.

SGI-PV: 954580
SGI-Modid: xfs-linux-melb:xfs-kern:26550a
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NNathan Scott <nathans@sgi.com>

HAL and friends have a tendency to trigger this one all the time.
It's not really interesting, so kill it. The vendor kernels all do
anyways.
Signed-off-by: NJens Axboe <axboe@suse.de>

Only enable dma for a valid speed setting.
Signed-off-by: NJens Axboe <axboe@suse.de>

It's the safer choice. Originally due to a bug in itx821x, but a
generally sound thing to do.
Signed-off-by: NJens Axboe <axboe@suse.de>