Currently we initialize the heap free_lock and free list size in
ion_heap_init_deferred_free, which is only called when the
ION_HEAP_FLAG_DEFER_FREE heap flag is given.  However, the lock and size
are used in the shrinker path as well as the deferred free path, and we
can register a shrinker *without* enabling deferred freeing.  So, if a
heap provides a shrinker but *doesn't* set the DEFER_FREE flag we will
use these parameters uninitialized (resulting in a spinlock bug and
broken shrinker accounting).

Fix these problems by initializing the free list parameters directly in
ion_device_add_heap, which is always called no matter which heap
features are being used.
Signed-off-by: Mitchel Humpherys <mitchelh@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

the check for htotal and vtotal is not required as we have already
checked for them and returned -EINVAL if any of them is zero.
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Remove the temporary code ion_cma_get_sgtable,
use dma_common_get_sgtable instead
Signed-off-by: Zeng Tao <prime.zeng@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The spinan_read_status can fail, check for the return value and
fail if the spinand_read_status fails.

Cc: Kamlakant Patel <kamlakant.patel@broadcom.com>
Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Combine the consecutive string
Signed-off-by: Panir Nyan <Panir.Nyan@gmail.com>
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Split the comment to fit the length.
Signed-off-by: Panir Nyan <Panir.Nyan@gmail.com>
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch fix a spelling typo and modify a comment.
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch fix spelling typo in comments and print.
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Removed useless 'else' statement that followed an 'if' statement that
had a return 1 and moved all the content from the 'else' to outside of
the switch case, this way if any case is sufficient it returns '1',
otherwise it will return 0.
Signed-off-by: Eduardo Barretto <edusbarretto@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

This commit fixes the following errors reported by checkpatch.pl -f:
./rts5208/ms.c:1294: ERROR: space prohibited before that ',' (ctx:WxW)
./rts5208/ms.c:1345: ERROR: space prohibited before that ',' (ctx:WxW)
./rts5208/ms.c:1622: ERROR: space prohibited before that ',' (ctx:WxW)
./rts5208/ms.c:1991: ERROR: space prohibited before that ',' (ctx:WxW)

This patch also adds missing spaces before and after '+' sign in two places.

This file has some other style issues and they will be fixed with latter
patches.
Signed-off-by: Robert Kmiec <robert.r.kmiec@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Even though it should never happen, handle the case that the clock
notifier is called with an unexpected clock handle. This avoids the
compiler warning:
   drivers/staging/clocking-wizard/clk-xlnx-clock-wizard.c: In function 'clk_wzrd_clk_notifier':
>> drivers/staging/clocking-wizard/clk-xlnx-clock-wizard.c:99:6: warning: 'max' may be used uninitialized in this function [-Wmaybe-uninitialized]
      if (ndata->new_rate > max)
         ^
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Added a new line after declaration to remove the warning
'Missing a blank line after declarations'
Signed-off-by: Athira Lekshmi <andnlnbn18@gmail.com>
Acked-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

the function cp_tm1217_mask_interrupt can return failure.
added the check and the failure path.

Cc: Ramesh Agarwal <ramesh.agarwal@intel.com>
Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Fixes this checkpatch warning:
WARNING: Missing a blank line after declarations
Signed-off-by: Arno Tiemersma <arno.tiemersma@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch fixes the checkpatch.pl issue
Error: trailing statements should be on next line
Signed-off-by: Balavasu <kp.balavasu@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Peng Tao <bergwolf@gmail.com>
Cc: HPDD-discuss@lists.01.org
Cc: devel@driverdev.osuosl.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Fixed a coding style issue
Signed-off-by: Igor Ishchenko <igor.ishchenko@coderivium.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

checkpatch complains about three places where a space is prohibited
before the braces for an "#if defined()" check. This patch removes
the spaces.
Signed-off-by: Andreas Ruprecht <rupran@einserver.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Smatch complains that "data->ioc_plen2" is a user controlled value and,
since we cast to signed int, the limit check can underflow.  It's not
very serious because probably the copy_to_user() would return -EFAULT
on every arch that matters instead of creating an info leak.  Also I
haven't followed it through to see if the value is really user
controlled.

But definitely it would be safer to cast to unsigned so let's do that.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Fixes the following sparse warnings:

drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c:198:1: warning:
 symbol 'libcfs_arch_init' was not declared. Should it be static?
drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c:204:1: warning:
 symbol 'libcfs_arch_cleanup' was not declared. Should it be static?
Signed-off-by: Serguey Parkhomovsky <sergueyparkhomovsky@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch fixes the checkpatch.pl issue
Error: do not initialise statics to 0 or NULL
Signed-off-by: Balavasu <kp.balavasu@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Fix the sparse warning about a context imbalance in the
srpc_service_recycle_buffer function by telling sparse that it
should expect the lock to be held on entry and held on exit.

  drivers/staging/lustre/lnet/selftest/rpc.c:725:20: warning: context imbalance in 'srpc_service_recycle_buffer' - unexpected unlock
Signed-off-by: Jeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Fix the sparse warning about a context imbalance in the
srpc_service_post_buffer function by telling sparse that it
should expect the lock to be held on entry and held on exit.

  drivers/staging/lustre/lnet/selftest/rpc.c:508:17: warning: context imbalance in 'srpc_service_post_buffer' - unexpected unlock
Signed-off-by: Jeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Fix the sparse warning about a context imbalance in the
sfw_deactivate_session function by telling sparse that it
should expect the lock to be held on entry and held on exit.

  drivers/staging/lustre/lnet/selftest/framework.c:210:9: warning: context imbalance in 'sfw_deactivate_session' - unexpected unlock
Signed-off-by: Jeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Fix several "symbol '...' was not declared" sparse warnings
for variables which are only used locally by declaring them static.
Signed-off-by: Jeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Fix several "symbol '...' was not declared" sparse warnings which
are caused by global variables by declaring them in the header file.
Signed-off-by: Jeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Avoid forward declaratoins by moving functions to a location before they
are referenced.
Signed-off-by: Sören Brinkmann <soeren.brinkmann@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

This fixes sparse warnings:
  staging/lustre/lustre/libcfs/nidstrings.c:200:11: warning: symbol 'libcfs_nnetstrfns' was not declared. Should it be static?
  drivers/staging/lustre/lustre/libcfs/nidstrings.c:203:1: warning: symbol 'libcfs_lo_str2addr' was not declared. Should it be static?
  drivers/staging/lustre/lustre/libcfs/nidstrings.c:210:1: warning: symbol 'libcfs_ip_addr2str' was not declared. Should it be static?
  drivers/staging/lustre/lustre/libcfs/nidstrings.c:227:1: warning: symbol 'libcfs_ip_str2addr' was not declared. Should it be static?
  drivers/staging/lustre/lustre/libcfs/nidstrings.c:248:1: warning: symbol 'libcfs_decnum_addr2str' was not declared. Should it be static?
  drivers/staging/lustre/lustre/libcfs/nidstrings.c:254:1: warning: symbol 'libcfs_hexnum_addr2str' was not declared. Should it be static?
  drivers/staging/lustre/lustre/libcfs/nidstrings.c:260:1: warning: symbol 'libcfs_num_str2addr' was not declared. Should it be static?
  staging/lustre/lustre/libcfs/nidstrings.c:279:18: warning: symbol 'libcfs_lnd2netstrfns' was not declared. Should it be static?
  drivers/staging/lustre/lustre/libcfs/nidstrings.c:292:18: warning: symbol 'libcfs_namenum2netstrfns' was not declared. Should it be static?
  drivers/staging/lustre/lustre/libcfs/nidstrings.c:307:18: warning: symbol 'libcfs_name2netstrfns' was not declared. Should it be static?

Some functions had static forward declarations followed by non-static
implementations. Those forward declarations are removed and the
implementations are declared static and moved into a location that
doesn't require forward declarations.
Signed-off-by: Sören Brinkmann <soeren.brinkmann@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Remove all custom MIN/MAX and min_t operations since they are
no longer needed.
Signed-off-by: Jeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Switch from MIN to min_t and remove the previous cast of the second
argument to int.
Signed-off-by: Jeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Switch from MIN to min and fix the new type warning.  The
warning is produced because a comparison between iov_len,
which is a __kernel_size_t, is made to kiov_len, which is an
unsigned int (include/linux/lnet/types.h).  Fix the warning
by casting kiov_len to __kernel_size_t.
Signed-off-by: Jeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Switch from MIN/MAX to min_t/max_t with a size_t type.  The size_t type
was chosen because one operand is a size_t and all the others are
immediate integer values.
Signed-off-by: Jeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Switch from MIN to the built in min_t with the int type.
Signed-off-by: Jeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Custom MIN/MAX operations are being used which are not as robust
as the built in min/max operations which will warn about potentially
problematic type comparisons.

For the simple cases, where no type warning is produced, simply
replace MIN/MAX with min/max.
Signed-off-by: Jeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Align switch and case to be at the same indent.
Signed-off-by: Samuel Kihahu <skihahu@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1)  The places which called copy_from_user() were returning the number
of bytes not copied instead of -EFAULT.

2) The user could trigger a memory leak if the condition
"(hdr.ioc_len != data->ioc_len)" was true.  Instead of adding a new call
to OBD_FREE_LARGE(), I created a free_buf label and changed everything
to use that label.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Tidied up some code in a case statement after a discussion.

This was partly found using a static code analysis program called cppcheck.
Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Removed an unnecessary NULL check.
Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

ptlrpc_internal.h contains the prototypes for sptlrpc_gc_init() and
sptlrpc_gc_fini(), which are defined in sec_gc.c.

This removes the following sparse warnings:

drivers/staging/lustre/lustre/ptlrpc/sec_gc.c:217:5: warning: symbol 'sptlrpc_gc_init' was not declared. Should it be static?
drivers/staging/lustre/lustre/ptlrpc/sec_gc.c:241:6: warning: symbol 'sptlrpc_gc_fini' was not declared. Should it be static?
Signed-off-by: Spencer Baugh <sbaugh@andrew.cmu.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>