strncpy_from_user could return negative values on error,
so need to take those into account.
Since ll_getname is used to get a single component name from userspace
to transfer to server as-is, there's no need to allocate 4k buffer
as done by __getname. Allocate NAME_MAX+1 buffer instead to ensure
we have enough for a null terminated max valid length buffer.

This was discovered by Al Viro in https://lkml.org/lkml/2015/4/11/243Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

It uses getname in unsafe manner and since it's to deal with corrupted
or inconsistent filesystem, we are probably better to deal with
it from lfsck anyway.
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Merge tag 'iio-for-v4.2c' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

Third round of new IIO drivers, cleanups and functionality for the 4.2 cycle.

Given Linus announced a 4.8rc coming up, hopefully time for one more
lot of IIO patches this cycle.  Some of these are actually
improvements / fixes for patches earlier in the cycle.

New device support
* st_accel driver - support devices with 8 bit channels.

Cleanup
* A general cleanup of the iio tools under /tools/ from Hartmut.
  I'm more than a little embarassed by how bad some of these were! Are well,
  much more refined and less bug prone now.
  These cover lots of stuff like unhandled error returns, memory leaks as
  well as general refactoring to tidy the code up.
* iio_simple_dummy - fix memory leaks in the init functions, drop some
  pointless error returns from functions that never generate errors and
  make the module parameter explicitly unsigned.
* More buffer handling reworks from Lars-Peter, this time targetting hardware
  buffers (a little used corner that looks likely to get more use in the near
  future). Specifically:
  - Always compute the masklength as inkernel buffer users may need it.
  - Add a means of labeling which buffer modes a given buffer implementation
    supports.
  - In the case of hardware buffers, require strict scan matching rather than
    matching to a superset.  Currently the demux is bypassed by these drivers
    (this may well not change for efficiency reasons) so allowing a superset
    of channels to be selected would otherwise lead to more data than requested
    confusing userspace.

Driver funcationality improvments
* mmc35240 - adds a compensation to the raw values as borrowed form Memsic's
  own input driver.
* mma8452
  - event support
  - event debouncing
  - high  pass filter configuration
  - triggers
* vf610 - allow conversion mode to be adjusted

Fixlets
* mmc35240
  - Off by one error that by coincidence had no real effect.
  - i2c_device_name should be lowercase.
  - Lack of null terminator at end of attributes array.
  - Avoid computing the fractional part of the magnetic field by moving
    the scaling into userspace where floating point is available to simplify
    the maths.
  - Use a smaller sleep before assuming the measurement is done.  This is
    safe and improves the possible polling rate.
  - Fix sensitivity on z-axis - datasheet disagrees with Memsic's releasedd
    code and the value used in the code seems to be correct.
* stk3310 - make a local variable signed to ensure error handling works.
* twl4030
  - fix calculation of the temperature sense current - bug unlikely
    to have ever been noticed as the difference is small.
  - Fix errors in descriptions.

Eliminate "space prohibited before that ','" errors found by checkpatch,
but do this only to lines which after the patch is applied do not
exceed 80 characters. Out of that only those lines are changed, whose
context does not exceed 80 characters in each line. In other words the
changes are limited to cases where the patch generated is itself
checkpatch-correct.

Rebased onto next-20150605.
Signed-off-by: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Fixes a space prohibited before that ',' and space required after
that ',' error in lustre/lustre/obdclass/dt_object.c that were
found by the checkpatch.pl tool.
Signed-off-by: Zoltán Lajos Kis <zoltan.lajos.kis@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Fixes a braces {} are not necessary for any arm of this statement
warning in lustre/lustre/obdclass/dt_object.c that was found by
the checkpatch.pl tool.
Signed-off-by: Zoltán Lajos Kis <zoltan.lajos.kis@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Fixes a line over 80 characters warining in
lustre/lustre/obdclass/dt_object.c that was found by the
checkpatch.pl tool.
Signed-off-by: Zoltán Lajos Kis <zoltan.lajos.kis@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Use kernel.h macro definition.

Thanks to Julia Lawall for Coccinelle scripting support.
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Point to the right place for GNU license. Update Intel copyright.
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Handle all the style issues reported by checkpatch.pl.
Remove general white spaces, spaces in function calls,
etc.
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Instead of handling calls to struct proto ourselves we can use
equivalent kernel wrappers. No wrapper exist for unlocked ioctl
handling so we create one here for our use. I expect some day
that function will be integrated into sock.c.
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

With all the TCPIP handling done in the lnet layer we should
rename all the functions with the prefix lnet_*. One other
change done was changing the remove argument of lnet_sock_getaddr
from a int to a bool.
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Another one of those silly one line wrappers which is not
needed. Replace libcfs_sock_abort_accept wrapper with a
direct call to wake_up_all on the lnet_acceptor_state sock.
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

There is no reason to have a one line exported function
libcfs_sock_release. Instead we can call sock_release directly.
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Rename libcfs/linux/linux-tcpip.c to lnet/lnet/lib-socket.c
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Aligned enum members and defines to follow a common style
per enum/(group of defines).
Signed-off-by: Stanislav Kholmanskikh <kholmanskikh.s.s@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Changed 'return(X)' to 'return X' in coreconfigurator.c
to satisfy checkpatch.pl warning:

ERROR: return is not a function, parentheses are not required
Signed-off-by: Stanislav Kholmanskikh <kholmanskikh.s.s@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

In accordance to checkpatch.pl, a space before a quoted
newline ("\n") is unnecessary, therefore substituted " \n"
with "\n" in coreconfigurator.c
Signed-off-by: Stanislav Kholmanskikh <kholmanskikh.s.s@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch is for the initialization of the local variables.
Signed-off-by: Johnny Kim <johnny.kim@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

This remove compile warnings about printk format.
Signed-off-by: Johnny Kim <johnny.kim@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch fixes a build warning related to the use of the time_after_eq
macro.Adding a typecast to the second argument suppresses the
warning.This warning was created by one my previous patch.
Signed-off-by: Hari Prasath Gujulan Elango <hgujulan@visteon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

removed few variables which are assigned but
never used.
Signed-off-by: Madhusudhanan Ravindran <mravindr@visteon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

while building on i386 it gives a build warning about msg undeclared.

Fixes: e6ffd1ba ("staging: fbtft: fix out of bound access")
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

This adds support for the LIS331DL sensor version. This is
a simple 8bit-only accelerometer.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

Convert spaces at the start of a line to a tab.
Signed-off-by: Markus Böhme <markus.boehme@mailbox.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The indenting here causes a static checker warning:

	drivers/staging/rtl8192e/rtllib_rx.c:626 RxReorderIndicatePacket()
	warn: curly braces intended?

The code is actually correct, it's just that these lines were pushed in
an extra indent level by mistake in 35e33b04 ('staging: rtl8192e:
Fix LONG_LINE warnings').
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

mp_adapter structure was used in past, but now is only initialized and
never read.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Remove unused members of rtl8192_priv structure.
Some of them are never used, other are just initialized and
never accessed.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Remove unused fields from rt_stats structure.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Remove undefined and unused PHY array forward-declarations.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

- Remove unused fields in dig_t structures. Some of them were only
  initialized and never accessed.
- Remove unused enums/macros/defines in rtl_dm.h
- Remove duplicated function declarations
- Remove unused dm_change_dynamic_initgain_thresh() function
- Remove unused dm_shadow_init() function
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

- Removed unused macros/enums/structures
- Remove unused fields in r8192_priv
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Both functions are never used.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Remove cmpk_message_handle_rx() and static functions used by it.
This function was never called.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Remove cmpk_handle_query_config_rx function. It is called
once, does some calculation, but generates no output -
it has neither return value, nor modify its parameters.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Delete unused code. Removed some macros, enums, unions and several
structures (tx_fwinfo, wmm_tspec, qos_tstream, sta_qos, bss_qos).
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Remove two lines at ieee80211_wep_null which checkpatch.pl reported as errors.
The first one because it has a C99 comment style and the second one because it is a void
return which is useless.
The function ieee80211_wep_null cannot be completely removed because it is exported and
used to autoload the module.
Signed-off-by: Pedro Marzo Perez <marzo.pedro@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Simplify prism2_wep_init error check code employing goto when a failure is detected.
Removed pr_debug which was given a checkpatch.pl error because of literal string
 splitted across two lines of code, it was seldom going to be printed anyway.
Signed-off-by: Pedro Marzo Perez <marzo.pedro@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Fix the following sparse warnings:

drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:663:32: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:663:32:    expected restricted __le16 [usertype] frame_ctl
drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:663:32:    got int
drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:664:50: warning: invalid assignment: |=
drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:664:50:    left side has type restricted __le16
drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:664:50:    right side has type int
Signed-off-by: Gaston Gonzalez <gascoar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

auth_parse() return result is in incorrect le16 byte order. Currently
this still works since the user code merely checks if error code is
equal to 0. However debug statement in ieee80211_check_auth_response()
prints the error code in the incorrect le16 byte order. This fix
corrects the byte order as cpu order.
Signed-off-by: Tolga Ceylan <tolga.ceylan@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>