It appears that various v4l-dvb drivers are changing to require
explicit initialization before use. This change to the pvrusb2 driver
implements an automatic issuance of VIDIOC_INT_INIT when a module is
bound to the driver, thus conforming to the new behavior.
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Add v4l2_i2c_tuner_addrs() to obtain the various I2C tuner addresses.
This will be used in several drivers, so make this a common function
as we do not want to have these I2C addresses all over the place.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Register v4l2_device and switch to v4l2_subdev to access the i2c modules.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This patch adds support for Philips webcam snapshot button as an
event input device, for consistency with other webcam drivers.
Signed-off-by: Pham Thanh Nam <phamthanhnam.ptn@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Previous v4l-dvb changeset id 4cc8ed11e2e0 changed the pvrusb2-hdw
internal API regarding i2c chip debug register access. However that
change failed to also update the corresponding function comment
describing the API. As driver maintained I never saw a request for an
ack on that change; there probably should have been one especially
since the manner in which this API operates was changed - its
interface is now entangled with a v4l specific struct and I would have
preferred to keep this API clear of moving-target v4l-isms such as
this one if at all possible which is why I had done it the way I did
before. But whatever. This commit at least fixes the comment issue.
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Use the new pvrusb2 internal API to grab the device identifier, rather
than generating it directly. This unifies some code and make possible
use of that identifier in places other than sysfs.
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Implement a new internal function to create a string device
identifier. This ID stays with the specific device, making it useful
to user space to identify specific devices. We use the serial number
if available; otherwise we give up and just spit out a unit/instance ID.
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This patch adds the capability of selecting between 4 different inputs
on vivi driver. Input 0 is the normal color bar, while inputs 1-3 are
modified color bars.
This allows testing input selection on userspace applications and
serves as an implementation model for other drivers.
The current approach allows a maximum of 10 different inputs, since the
input name generator assumes that we need just one digit to present the
input. It shouldn't be hard to modify it to present a bigger name of
inputs, but, in fact, it doesn't make much sense of doing it for this
test driver.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This bug was found with smatch (http://repo.or.cz/w/smatch.git/). If
we return directly the inode->i_mutex lock doesn't get released.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
CC: stable@kernel.org
Lockdep gripes if file->f_lock is taken in a no-IRQ situation, since that
is not always the case. We don't really want to disable IRQs for every
acquisition of f_lock; instead, just move it outside of fasync_lock.
Reported-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Reported-by: Larry Finger <Larry.Finger@lwfinger.net>
Reported-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Add platform data for the smc91x on the PB1200/DB1200, and remove the
now unused AU1X00 entry in smc91x.h.
Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
The Alchemy manuals state:
"All pipeline hazards and dependencies are enforced by hardware interlocks
so that any sequence of instructions is guaranteed to execute correctly.
Therefore, it is not necessary to pad legacy MIPS hazards (such as
load delay slots and coprocessor accesses) with NOPs."
Run-tested on Au12x0, without any ill effects.
Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Add cpu feature override constants tailored for all Alchemy variants
currently in existence.
Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
create mode 100644 arch/mips/include/asm/mach-au1x00/cpu-feature-overrides.h
This patch removes the various CPU_AU1??? model constants in favor of
a single CPU_ALCHEMY one.
All currently existing Alchemy models are identical in terms of cpu
core and cache size/organization. The parts of the mips kernel which
need to know the exact CPU revision extract it from the c0_prid register
already; and finally nothing else in-tree depends on those any more.
Should a new variant with slightly different "company options" and/or
"processor revision" bits in c0_prid appear, it will be supported
immediately (minus an exact model string in cpuinfo).
Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The variable cpu_callin_map is needlessly defined global, so let's
make it static now.
Build-tested using malta_defconfig.
Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The following symbols in arch/mips/kernel/smp-up.c are needlessly
defined global:
up_send_ipi_single()
up_init_secondary()
up_smp_finish()
up_cpus_done()
up_boot_secondary()
up_smp_setup()
up_prepare_cpus()
This patch makes the symbols static.
Build-tested using malta_defconfig.
Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The variable `mips_revision_corid' is needlessly defined global in
arch/mips/mti-malta/malta-init.c, and this patch makes it static.
Build-tested with malta_defconfig.
Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Impact: cleanup
Convert the last remaining users to struct irq_desc.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Fix two remaining set_irq_chip_and_handler() users which are encourated
to migrate to set_irq_chip_and_handler_name().
Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
EMMA's GPIO interrupts are latched by GPIO interrupt status register.
In this case, we're encouraged to use handle_edge_irq() handler.
The following changes are made along with replacing set_irq_chip() with
set_irq_chip_and_handler_name(,,handle_edge_irq,"edge"):
* Fix emma2rh_gpio_irq_ack not to disable interrupts
With handle_edge_irq(), we're not expected to disable interrupts
when chip->ack is served, so fix it accordingly. We also add a new
emma2rh_gpio_irq_mask_ack() for chip->mask_ack operation, instead.
* Remove emma2rh_gpio_irq_end(), as chip->end is no longer served.
Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This patch converts the GPIO board code to use gpiolib.
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Through sys_llseek() arguably should do exactly that it doesn't which
means llseek(2) will fail for o32 processes if offset_low has bit 31 set.
As suggested by Heiko Carstens.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
If the lock is not acquired and has to spin *and* the second attempt
to acquire the lock fails, the delay time is not masked by the ticket
range mask. If the ticket number wraps around to zero, the result is
that the lock sampling delay is essentially infinite (due to casting
-1 to an unsigned int).
The fix: Always mask the difference between my_ticket and the current
ticket value before calculating the delay.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* 'bzip2-lzma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-tip:
bzip2/lzma: don't ask for compression mode for the default initramfs
bzip2/lzma: consistently capitalize LZMA in Kconfig
bzip2/lzma: clarify the meaning of the CONFIG_RD_ options
bzip2/lzma: move CONFIG_RD_* options under CONFIG_EMBEDDED
<linux/irq.h> relies on <linux/gfp.h> and <linux/topology.h> having been
included previous. If not, the errors like below will result.
CC arch/mips/mti-malta/malta-int.o
In file included from arch/mips/mti-malta/malta-int.c:25:
include/linux/irq.h: In function ‘init_alloc_desc_masks’:
include/linux/irq.h:444: error: implicit declaration of function ‘cpu_to_node’
include/linux/irq.h:446: error: ‘GFP_ATOMIC’ undeclared (first use in this function)
include/linux/irq.h:446: error: (Each undeclared identifier is reported only once
include/linux/irq.h:446: error: for each function it appears in.)
make[3]: *** [arch/mips/mti-malta/malta-int.o] Error 1
make[2]: *** [arch/mips/mti-malta] Error 2
make[1]: *** [sub-make] Error 2
Fixed by including the two missing headers.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix kernel-doc errors in sched.c: the structs don't have
kernel-doc notation and the short function description needs to
be one line only.
Error(kernel/sched.c:3197): cannot understand prototype: 'struct sd_lb_stats '
Error(kernel/sched.c:3228): cannot understand prototype: 'struct sg_lb_stats '
Error(kernel/sched.c:3375): duplicate section name 'Description'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 'futexes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
futex: remove the pointer math from double_unlock_hb, fix
futex: remove the pointer math from double_unlock_hb
futex: clean up fault logic
futex: unlock before returning -EFAULT
futex: use current->time_slack_ns for rt tasks too
futex: add double_unlock_hb()
futex: additional (get|put)_futex_key() fixes
futex: update futex commentary
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
smack: Add a new '-CIPSO' option to the network address label configuration
netlabel: Cleanup the Smack/NetLabel code to fix incoming TCP connections
lsm: Remove the socket_post_accept() hook
selinux: Remove the "compat_net" compatibility code
netlabel: Label incoming TCP connections correctly in SELinux
lsm: Relocate the IPv4 security_inet_conn_request() hooks
TOMOYO: Fix a typo.
smack: convert smack to standard linux lists
Annotate struct fs_struct's usage count to indicate the restrictions upon it.
It may not be incremented, except by clone(CLONE_FS), as this affects the
check in check_unsafe_exec() in fs/exec.c.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
check_unsafe_exec() also notes whether the fs_struct is being
shared by more threads than will get killed by the exec, and if so
sets LSM_UNSAFE_SHARE to make bprm_set_creds() careful about euid.
But /proc/<pid>/cwd and /proc/<pid>/root lookups make transient
use of get_fs_struct(), which also raises that sharing count.
This might occasionally cause a setuid program not to change euid,
in the same way as happened with files->count (check_unsafe_exec
also looks at sighand->count, but /proc doesn't raise that one).
We'd prefer exec not to unshare fs_struct: so fix this in procfs,
replacing get_fs_struct() by get_fs_path(), which does path_get
while still holding task_lock, instead of raising fs->count.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: stable@kernel.org
___
fs/proc/base.c | 50 +++++++++++++++--------------------------------
1 file changed, 16 insertions(+), 34 deletions(-)
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Joe Malicki reports that setuid sometimes doesn't: very rarely,
a setuid root program does not get root euid; and, by the way,
they have a health check running lsof every few minutes.
Right, check_unsafe_exec() notes whether the files_struct is being
shared by more threads than will get killed by the exec, and if so
sets LSM_UNSAFE_SHARE to make bprm_set_creds() careful about euid.
But /proc/<pid>/fd and /proc/<pid>/fdinfo lookups make transient
use of get_files_struct(), which also raises that sharing count.
There's a rather simple fix for this: exec's check on files->count
has been redundant ever since 2.6.1 made it unshare_files() (except
while compat_do_execve() omitted to do so) - just remove that check.
[Note to -stable: this patch will not apply before 2.6.29: earlier
releases should just remove the files->count line from unsafe_exec().]
Reported-by: Joe Malicki <jmalicki@metacarta.com>
Narrowed-down-by: Michael Itz <mitz@metacarta.com>
Tested-by: Joe Malicki <jmalicki@metacarta.com>
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2.6.26's commit fd8328be87
"sanitize handling of shared descriptor tables in failing execve()"
moved the unshare_files() from flush_old_exec() and several binfmts
to the head of do_execve(); but forgot to make the same change to
compat_do_execve(), leaving a CLONE_FILES files_struct shared across
exec from a 32-bit process on a 64-bit kernel.
It's arguable whether the files_struct really ought to be unshared
across exec; but 2.6.1 made that so to stop the loading binary's fd
leaking into other threads, and a 32-bit process on a 64-bit kernel
ought to behave in the same way as 32 on 32 and 64 on 64.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
