Do not migrate root inode.
Signed-off-by: wang di <di.wang@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7577
Reviewed-on: http://review.whamcloud.com/17669
Reviewed-by: Lai Siyao <lai.siyao@intel.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Check if the request is NULL, before retrieve reply body
from the request.
Signed-off-by: wang di <di.wang@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7396
Reviewed-on: http://review.whamcloud.com/17079
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
These are fixes that came in just to late for the 4.10 cycle.
Two drivers made an accidental assumption of structure arrangement for
struct iio_dev that are no longer true. It was a typo in the first place
that happened to work until some elements were added to the structure.
* mpl3115
- don't rely on structure field ordering
* mpl115
- don't rely on structure field ordering.
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Merge tag 'iio-fixes-for-4.11a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next
Jonathan writes:
First set of IIO fixes for the 4.11 cycle. Regression fixes from 4.10.
These are fixes that came in just to late for the 4.10 cycle.
Two drivers made an accidental assumption of structure arrangement for
struct iio_dev that are no longer true. It was a typo in the first place
that happened to work until some elements were added to the structure.
* mpl3115
- don't rely on structure field ordering
* mpl115
- don't rely on structure field ordering.
Fixes a regression triggered by a change in the layout of
struct iio_chan_spec, but the real bug is in the driver which assumed
a specific structure layout in the first place. Hint: the three bits were
not OR:ed together as implied by the indentation prior to this patch,
there was a comma between the first two, which accidentally moved the
..._SCALE and ..._OFFSET bits to the next structure field. That field
was .info_mask_shared_by_type before the _available attributes was added
by commit 5123960007 ("iio:core: add a callback to allow drivers to
provide _available attributes") and .info_mask_separate_available
afterwards, and the regression happened.
info_mask_shared_by_type is actually a better choice than the originally
intended info_mask_separate for the ..._SCALE and ..._OFFSET bits since
a constant is returned from mpl115_read_raw for the scale/offset. Using
info_mask_shared_by_type also preserves the behavior from before the
regression and is therefore less likely to cause other interesting side
effects.
The above mentioned regression causes unintended sysfs attibutes to
show up that are not backed by code, in turn causing a NULL pointer
defererence to happen on access.
Fixes: 3017d90e89 ("iio: Add Freescale MPL115A2 pressure / temperature sensor driver")
Fixes: 5123960007 ("iio:core: add a callback to allow drivers to provide _available attributes")
Signed-off-by: Peter Rosin <peda@axentia.se>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Fixes a regression triggered by a change in the layout of
struct iio_chan_spec, but the real bug is in the driver which assumed
a specific structure layout in the first place. Hint: the two bits were
not OR:ed together as implied by the indentation prior to this patch,
there was a comma between them, which accidentally moved the ..._SCALE
bit to the next structure field. That field was .info_mask_shared_by_type
before the _available attributes was added by commit 5123960007
("iio:core: add a callback to allow drivers to provide _available
attributes") and .info_mask_separate_available afterwards, and the
regression happened.
info_mask_shared_by_type is actually a better choice than the originally
intended info_mask_separate for the ..._SCALE bit since a constant is
returned from mpl3115_read_raw for the scale. Using
info_mask_shared_by_type also preserves the behavior from before the
regression and is therefore less likely to cause other interesting side
effects.
The above mentioned regression causes an unintended sysfs attibute to
show up that is not backed by code, in turn causing the following NULL
pointer defererence to happen on access.
Segmentation fault
Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = ecc3c000
[00000000] *pgd=87f91831
Internal error: Oops: 80000007 [#1] SMP ARM
Modules linked in:
CPU: 1 PID: 1051 Comm: cat Not tainted 4.10.0-rc5-00009-gffd8858-dirty #3
Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)
task: ed54ec00 task.stack: ee2bc000
PC is at 0x0
LR is at iio_read_channel_info_avail+0x40/0x280
pc : [<00000000>] lr : [<c06fbc1c>] psr: a0070013
sp : ee2bdda8 ip : 00000000 fp : ee2bddf4
r10: c0a53c74 r9 : ed79f000 r8 : ee8d1018
r7 : 00001000 r6 : 00000fff r5 : ee8b9a00 r4 : ed79f000
r3 : ee2bddc4 r2 : ee2bddbc r1 : c0a86dcc r0 : ee8d1000
Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
Control: 10c5387d Table: 3cc3c04a DAC: 00000051
Process cat (pid: 1051, stack limit = 0xee2bc210)
Stack: (0xee2bdda8 to 0xee2be000)
dda0: ee2bddc0 00000002 c016d720 c016d394 ed54ec00 00000000
ddc0: 60070013 ed413780 00000001 edffd480 ee8b9a00 00000fff 00001000 ee8d1018
dde0: ed79f000 c0a53c74 ee2bde0c ee2bddf8 c0513c58 c06fbbe8 edffd480 edffd540
de00: ee2bde3c ee2bde10 c0293474 c0513c40 c02933e4 ee2bde60 00000001 ed413780
de20: 00000001 ed413780 00000000 edffd480 ee2bde4c ee2bde40 c0291d00 c02933f0
de40: ee2bde9c ee2bde50 c024679c c0291ce0 edffd4b0 b6e37000 00020000 ee2bdf78
de60: 00000000 00000000 ed54ec00 ed013200 00000817 c0a111fc edffd540 ed413780
de80: b6e37000 00020000 00020000 ee2bdf78 ee2bded4 ee2bdea0 c0292890 c0246604
dea0: c0117940 c016ba50 00000025 c0a111fc b6e37000 ed413780 ee2bdf78 00020000
dec0: ee2bc000 b6e37000 ee2bdf44 ee2bded8 c021d158 c0292770 c0117764 b6e36004
dee0: c0f0d7c4 ee2bdfb0 b6f89228 00021008 ee2bdfac ee2bdf00 c0101374 c0117770
df00: 00000000 00000000 ee2bc000 00000000 ee2bdf34 ee2bdf20 c016ba04 c0171080
df20: 00000000 00020000 ed413780 b6e37000 00000000 ee2bdf78 ee2bdf74 ee2bdf48
df40: c021e7a0 c021d130 c023e300 c023e280 ee2bdf74 00000000 00000000 ed413780
df60: ed413780 00020000 ee2bdfa4 ee2bdf78 c021e870 c021e71c 00000000 00000000
df80: 00020000 00020000 b6e37000 00000003 c0108084 00000000 00000000 ee2bdfa8
dfa0: c0107ee0 c021e838 00020000 00020000 00000003 b6e37000 00020000 0001a2b4
dfc0: 00020000 00020000 b6e37000 00000003 7fffe000 00000000 00000000 00020000
dfe0: 00000000 be98eb4c 0000c740 b6f1985c 60070010 00000003 00000000 00000000
Backtrace:
[<c06fbbdc>] (iio_read_channel_info_avail) from [<c0513c58>] (dev_attr_show+0x24/0x50)
r10:c0a53c74 r9:ed79f000 r8:ee8d1018 r7:00001000 r6:00000fff r5:ee8b9a00
r4:edffd480
[<c0513c34>] (dev_attr_show) from [<c0293474>] (sysfs_kf_seq_show+0x90/0x110)
r5:edffd540 r4:edffd480
[<c02933e4>] (sysfs_kf_seq_show) from [<c0291d00>] (kernfs_seq_show+0x2c/0x30)
r10:edffd480 r9:00000000 r8:ed413780 r7:00000001 r6:ed413780 r5:00000001
r4:ee2bde60 r3:c02933e4
[<c0291cd4>] (kernfs_seq_show) from [<c024679c>] (seq_read+0x1a4/0x4e0)
[<c02465f8>] (seq_read) from [<c0292890>] (kernfs_fop_read+0x12c/0x1cc)
r10:ee2bdf78 r9:00020000 r8:00020000 r7:b6e37000 r6:ed413780 r5:edffd540
r4:c0a111fc
[<c0292764>] (kernfs_fop_read) from [<c021d158>] (__vfs_read+0x34/0x118)
r10:b6e37000 r9:ee2bc000 r8:00020000 r7:ee2bdf78 r6:ed413780 r5:b6e37000
r4:c0a111fc
[<c021d124>] (__vfs_read) from [<c021e7a0>] (vfs_read+0x90/0x11c)
r8:ee2bdf78 r7:00000000 r6:b6e37000 r5:ed413780 r4:00020000
[<c021e710>] (vfs_read) from [<c021e870>] (SyS_read+0x44/0x90)
r8:00020000 r7:ed413780 r6:ed413780 r5:00000000 r4:00000000
[<c021e82c>] (SyS_read) from [<c0107ee0>] (ret_fast_syscall+0x0/0x1c)
r10:00000000 r8:c0108084 r7:00000003 r6:b6e37000 r5:00020000 r4:00020000
Code: bad PC value
---[ end trace 9c4938ccd0389004 ]---
Fixes: cc26ad455f ("iio: Add Freescale MPL3115A2 pressure / temperature sensor driver")
Fixes: 5123960007 ("iio:core: add a callback to allow drivers to provide _available attributes")
Reported-by: Ken Lin <ken.lin@advantech.com>
Tested-by: Ken Lin <ken.lin@advantech.com>
Signed-off-by: Peter Rosin <peda@axentia.se>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Fixes sparse warnings:
warning: symbol 'xxx' was not declared. Should it be static?
Signed-off-by: Simon Sandström <simon@nikanor.nu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
bcm2835-vchiq.c:
fixing ERROR: do not initialise globals to false
Instead of explicitly initializing global variable force_bulk to "false",
declared force_bulk as static variable.
Signed-off-by: Abhijit Naik <abhijitnaik27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
It appears that our coding style prefers that logical continuations
have the operator at the end of the line. Fix that.
While at it, stick the 'if' after 'else' where it belongs.
Signed-off-by: Frans Klaver <fransklaver@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Function definitions arguments should also have an identifier name as
reported by checkpatch.pl.
Signed-off-by: Arushi Singhal <arushisinghal19971997@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch fixes the checkpatch warning by adding a blank line after
declarations.
WARNING: Missing a blank line after declarations
Signed-off-by: simran singhal <singhalsimran0@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
u.crypt.alg is an array of u8 integers and hence the null check on
this array is redundant and can be removed.
Detected with CoverityScan, CID#146583 ("Array compared against 0")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add Laurentiu Tudor as a second maintainer and update Stuart Yoder's
email address.
Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Leave only APIs that area actually used in the bus driver.
The patch is mostly mechanical, with a couple exceptions:
- getters/setters were not removed even if only one of
them is being used
- versioning API was also left in place
They will be added back on an as-needed basis.
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Acked-by: Stuart Yoder <stuart.yoder@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Leave only APIs that will be used in upcomming drivers.
The patch is mostly mechanical, with a couple exceptions:
- getters/setters were not removed even if only one of
them is being used
- versioning API was also left in place
They will be added back on an as-needed basis.
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Acked-by: Stuart Yoder <stuart.yoder@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The implementation was removed in commit:
decd3d0cf (staging: fsl-mc: uprev binary interface to match MC v10.x)
but the prototype was left behind.
Also fix a message that was wrongly mentioning it.
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Acked-by: Stuart Yoder <stuart.yoder@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
These APIs are not used yet, so drop the dead code.
The patch is mostly mechanical, with a couple exceptions:
- getters/setters were not removed even if only one of
them is being used
- versioning API was also left in place
Also in this patch, add missing prototype for
version query function.
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Acked-by: Stuart Yoder <stuart.yoder@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Let's drop the slab cache for objects
until we actually have proof that it improves
performance. This makes the code cleaner.
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Acked-by: Stuart Yoder <stuart.yoder@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Mixing two memory management systems, in this case
managed device resource api and refcounted objects
is a bad idea. Lifetime of an object is controlled
by its refcount so allocating it with other apis
that have their own lifetime control is not ok.
Drop devm_*() apis in favor of plain allocations.
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Acked-by: Stuart Yoder <stuart.yoder@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When hot unplugging a mc-bus device the kernel displays
this pertinent message, followed by a stack dump:
"Device 'foo.N' does not have a release() function,
it is broken and must be fixed."
Add the required callback to fix and drop the now
uneeded explicit freeing.
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Acked-by: Stuart Yoder <stuart.yoder@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Drop unneeded get_device() call at device creation
and, as per documentation, drop reference count
after using device_find_child() return.
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Acked-by: Stuart Yoder <stuart.yoder@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
It was used just to sanity check some obscure
cases that are unlikely to ever happen.
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Acked-by: Stuart Yoder <stuart.yoder@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
POKE32 and PEEK32 have been replaced by inlined functions poke32 and
peek32.
Having inline functions instead of macros help to get the correct
type-checking and avoid the possible precedence issues reported by
checkpatch.
Signed-off-by: Matthieu Simon <gmatthsim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
u.crypt.alg is an array of u8 integers and hence the null check on
this array is redundant and can be removed.
Detected with CoverityScan, CID#143214 ("Array compared against 0")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fix number of indentaions for block scopes as suggested by
Documentation/CodingStyle.
Signed-off-by: Fu Yong Quah <quah.fy95@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
recv_frame->rx_(data|len|tail) duplicate pkt (skb) data|len|tail members
and require special functions recvframe_(put|pull|pull_tail)()
instead of skb_(put|pull|trim).
Replace rx_(data|len|tail) with pkt->(data|len|tail),
remove rx_(data|len|tail) and remove recvframe_(put|pull|pull_tail)().
Signed-off-by: Ivan Safonov <insafonov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Original driver code uses rx_* members to store skb (pkt) fields
(instead of pkt->* members), pkt->* updated only after data
completely formed, not in process.
Update pkt->* after data buffer changed (with rx_*).
Signed-off-by: Ivan Safonov <insafonov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
rtw_ieee80211_bar structure definition does not used. Remove it.
Signed-off-by: Ivan Safonov <insafonov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
rx_end is duplication of pkt->end pointer.
pkt->end is preferred, because it is native skb field
supported by skb_*() functions.
Signed-off-by: Ivan Safonov <insafonov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixed missing conversion to le32, detected by sparse
(invalid assignment from int to __le32)
Signed-off-by: Carlos Palminha <palminha@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We just dereferenced "instance" on the line before so checking it here
is pointless. Anyway, it can't be NULL here so let's remove the check.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The > should be >= otherwise we write beyond the end of the array when
we do:
chip->alsa_stream[idx] = alsa_stream;
Fixes: 23b028c871 ("staging: bcm2835-audio: initial staging submission")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixed ERROR: that open brace { should be on the previous line.
One coding style correction for better readable code.
Signed-off-by: Victor Vaschenko <vicmos89@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixes checkpatch check "No space is necessary after a cast".
Signed-off-by: Simon Sandström <simon@nikanor.nu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixes checkpatch check "Comparison to NULL could be written '!chip'".
Signed-off-by: Simon Sandström <simon@nikanor.nu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixes checkpatch CHECK: "Alignment should match open parenthesis".
Signed-off-by: Simon Sandström <simon@nikanor.nu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixes checkpatch warning "Missing a blank line after declarations".
Signed-off-by: Simon Sandström <simon@nikanor.nu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixes checkpatch error "open brace { should be on the previous line".
Signed-off-by: Simon Sandström <simon@nikanor.nu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
According to the coding style, "bcm2835_ship ** rchip" should be
"bcm2835 **rchip".
Signed-off-by: Simon Sandström <simon@nikanor.nu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Static pointers are explicility initialised to NULL.
Signed-off-by: Simon Sandström <simon@nikanor.nu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The find_dev_index() function is frustrating. If you give it an invalid
index then it returns 0. That was the intent except there is an
off-by-one so it can return MAX_NIC_TYPE which is one higher than we
want.
There is one caller which had a sanity check to catch invalid returns,
but the other two callers assumed that index was valid.
My feeling is that when we are given invalid indexes, that should be
treated like an error and we abandon what we were doing.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch is to make the permissions sent to module_param be
explicitly octal in accordance with the linux style conventions. Issues
found by checkpatch.pl.
Signed-off-by: stephen knipe <steve.knipe@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
As part of cleaning up symbolic permissions found define that is not used.
Signed-off-by: Derek Robson <robsonde@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add a struct timer_list to struct gb_operation and use that to implement
generic operation timeouts.
This simplifies the synchronous operation handling somewhat while also
providing a generic timeout mechanism that drivers can use for
asynchronous operations.
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Bryan O'Donoghue <pure.logic@nexus-software.ie>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This resolves the merge errors that were reported in linux-next and it
picks up the staging and IIO fixes that we need/want in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fix the following formatting issues:
CHECK: Alignment should match open parenthesis
Signed-off-by: Umang Raghuvanshi <u@umangis.me>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
