Commit Graph

1071838 Commits

Author SHA1 Message Date
Jiri Kosina
b690490d6d Merge branch 'for-5.18/amd-sfh' into for-linus
- dead code elimination (Christophe JAILLET)
2022-03-23 09:58:40 +01:00
Gwendal Grignou
f97ec5d75e HID: intel-ish-hid: Use dma_alloc_coherent for firmware update
Allocating memory with kmalloc and GPF_DMA32 is not allowed, the
allocator will ignore the attribute.

Instead, use dma_alloc_coherent() API as we allocate a small amount of
memory to transfer firmware fragment to the ISH.

On Arcada chromebook, after the patch the warning:
"Unexpected gfp: 0x4 (GFP_DMA32). Fixing up to gfp: 0xcc0 (GFP_KERNEL).  Fix your code!"
is gone. The ISH firmware is loaded properly and we can interact with
the ISH:
> ectool  --name cros_ish version
...
Build info:    arcada_ish_v2.0.3661+3c1a1c1ae0 2022-02-08 05:37:47 @localhost
Tool version:  v2.0.12300-900b03ec7f 2022-02-08 10:01:48 @localhost

Fixes: commit 91b228107d ("HID: intel-ish-hid: ISH firmware loader client driver")
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-03-14 10:39:04 +01:00
Jia-Ju Bai
fe23b6bbea HID: nintendo: check the return value of alloc_workqueue()
The function alloc_workqueue() in nintendo_hid_probe() can fail, but
there is no check of its return value. To fix this bug, its return value
should be checked with new error handling code.

Fixes: c4eae84fef ("HID: nintendo: add rumble support")
Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Reviewed-by: Silvan Jegen <s.jegen@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-03-01 15:56:43 +01:00
Dmitry Torokhov
cc71d37fd1 HID: vivaldi: fix sysfs attributes leak
The driver creates the top row map sysfs attribute in input_configured()
method; unfortunately we do not have a callback that is executed when HID
interface is unbound, thus we are leaking these sysfs attributes, for
example when device is disconnected.

To fix it let's switch to managed version of adding sysfs attributes which
will ensure that they are destroyed when the driver is unbound.

Fixes: 14c9c014ba ("HID: add vivaldi HID driver")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Tested-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-03-01 15:31:17 +01:00
Pavel Skripkin
fc3ef2e329 HID: hid-thrustmaster: fix OOB read in thrustmaster_interrupts
Syzbot reported an slab-out-of-bounds Read in thrustmaster_probe() bug.
The root case is in missing validation check of actual number of endpoints.

Code should not blindly access usb_host_interface::endpoint array, since
it may contain less endpoints than code expects.

Fix it by adding missing validaion check and print an error if
number of endpoints do not match expected number

Fixes: c49c336378 ("HID: support for initialization of some Thrustmaster wheels")
Reported-and-tested-by: syzbot+35eebd505e97d315d01c@syzkaller.appspotmail.com
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-02-21 09:15:10 +01:00
Jiri Kosina
ac89895213 HID: elo: Revert USB reference counting
Commit 817b8b9c53 ("HID: elo: fix memory leak in elo_probe") introduced
memory leak on error path, but more importantly the whole USB reference
counting is not needed at all in the first place, as the driver itself
doesn't change the reference counting in any way, and the associated
usb_device is guaranteed to be kept around by USB core as long as the
driver binding exists.

Reported-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: fbf42729d0 ("HID: elo: update the reference count of the usb device structure")
Fixes: 817b8b9c53 ("HID: elo: fix memory leak in elo_probe")
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-02-17 14:14:41 +01:00
Michael Hübner
0a5a587501 HID: Add support for open wheel and no attachment to T300
Different add ons to the wheel base report different models. Having
no wheel mounted to the base and using the open wheel attachment is
added here.

Signed-off-by: Michael Hübner <michaelh.95@t-online.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-02-16 17:09:33 +01:00
Lucas Zampieri
25666e8ccd HID: logitech-dj: add new lightspeed receiver id
As of logitech lightspeed receiver fw version 04.02.B0009,
HIDPP_PARAM_DEVICE_INFO is being reported as 0x11.

With patch "HID: logitech-dj: add support for the new lightspeed receiver
iteration", the mouse starts to error out with:
  logitech-djreceiver: unusable device of type UNKNOWN (0x011) connected on
  slot 1
and becomes unusable.

This has been noticed on a Logitech G Pro X Superlight fw MPM 25.01.B0018.

Signed-off-by: Lucas Zampieri <lzampier@redhat.com>
Acked-by: Nestor Lopez Casado <nlopezcasad@logitech.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-02-16 16:26:21 +01:00
Basavaraj Natikar
7f016b35ca HID: amd_sfh: Add interrupt handler to process interrupts
On newer AMD platforms with SFH, it is observed that random interrupts
get generated on the SFH hardware and until this is cleared the firmware
sensor processing is stalled, resulting in no data been received to
driver side.

Add routines to handle these interrupts, so that firmware operations are
not stalled.

Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-02-14 16:28:51 +01:00
Basavaraj Natikar
fb75a3791a HID: amd_sfh: Add functionality to clear interrupts
Newer AMD platforms with SFH may generate interrupts on some events
which are unwarranted. Until this is cleared the actual MP2 data
processing maybe stalled in some cases.

Add a mechanism to clear the pending interrupts (if any) during the
driver initialization and sensor command operations.

Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-02-14 16:28:51 +01:00
Basavaraj Natikar
b300667b33 HID: amd_sfh: Disable the interrupt for all command
Sensor data is processed in polling mode. Hence disable the interrupt
for all sensor command.

Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-02-14 16:28:51 +01:00
Basavaraj Natikar
aa0b724a2b HID: amd_sfh: Correct the structure field name
Misinterpreted intr_enable field name. Hence correct the structure
field name accordingly to reflect the functionality.

Fixes: f264481ad6 ("HID: amd_sfh: Extend driver capabilities for multi-generation support")
Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-02-14 16:28:51 +01:00
Basavaraj Natikar
0cf74235f4 HID: amd_sfh: Handle amd_sfh work buffer in PM ops
Since in the current amd_sfh design the sensor data is periodically
obtained in the form of poll data, during the suspend/resume cycle,
scheduling a delayed work adds no value.

So, cancel the work and restart back during the suspend/resume cycle
respectively.

Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-02-14 16:28:51 +01:00
Sergio Costas
fd5dd6acd8 HID:Add support for UGTABLET WP5540
This patch adds support for the UGTABLET WP5540 digitizer tablet
devices. Without it, the pen moves the cursor, but neither the
buttons nor the tap sensor in the tip do work.

Signed-off-by: Sergio Costas <rastersoft@gmail.com>
Link: https://lore.kernel.org/r/63dece1d-91ca-1b1b-d90d-335be66896be@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2022-02-05 11:59:24 +01:00
Basavaraj Natikar
91aaea527b HID: amd_sfh: Add illuminance mask to limit ALS max value
ALS illuminance value present only in first 15 bits from SFH firmware
for V2 platforms. Hence added a mask of 15 bit to limit ALS max
illuminance values to get correct illuminance value.

Fixes: 0aad9c95eb ("HID: amd_sfh: Extend ALS support for newer AMD platform")
Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-02-02 15:04:26 +01:00
Basavaraj Natikar
a7072c01c3 HID: amd_sfh: Increase sensor command timeout
HPD sensors take more time to initialize. Hence increasing sensor
command timeout to get response with status within a max timeout.

Fixes: 173709f50e ("HID: amd_sfh: Add command response to check command status")
Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-02-02 15:04:26 +01:00
Daniel Thompson
2787710f73 HID: i2c-hid: goodix: Fix a lockdep splat
I'm was on the receiving end of a lockdep splat from this driver and after
scratching my head I couldn't be entirely sure it was a false positive
given we would also have to think about whether the regulator locking is
safe (since the notifier is called whilst holding regulator locks which
are also needed for regulator_is_enabled() ).

Regardless of whether it is a real bug or not, the mutex isn't needed.
We can use reference counting tricks instead to avoid races with the
notifier calls.

The observed splat follows:

------------------------------------------------------
kworker/u16:3/127 is trying to acquire lock:
ffff00008021fb20 (&ihid_goodix->regulator_mutex){+.+.}-{4:4}, at: ihid_goodix_vdd_notify+0x30/0x94

but task is already holding lock:
ffff0000835c60c0 (&(&rdev->notifier)->rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x30/0x70

which lock already depends on the new lock.

the existing dependency chain (in reverse order) is:

-> #1 (&(&rdev->notifier)->rwsem){++++}-{4:4}:
       down_write+0x68/0x8c
       blocking_notifier_chain_register+0x54/0x70
       regulator_register_notifier+0x1c/0x24
       devm_regulator_register_notifier+0x58/0x98
       i2c_hid_of_goodix_probe+0xdc/0x158
       i2c_device_probe+0x25d/0x270
       really_probe+0x174/0x2cc
       __driver_probe_device+0xc0/0xd8
       driver_probe_device+0x50/0xe4
       __device_attach_driver+0xa8/0xc0
       bus_for_each_drv+0x9c/0xc0
       __device_attach_async_helper+0x6c/0xbc
       async_run_entry_fn+0x38/0x100
       process_one_work+0x294/0x438
       worker_thread+0x180/0x258
       kthread+0x120/0x130
       ret_from_fork+0x10/0x20

-> #0 (&ihid_goodix->regulator_mutex){+.+.}-{4:4}:
       __lock_acquire+0xd24/0xfe8
       lock_acquire+0x288/0x2f4
       __mutex_lock+0xa0/0x338
       mutex_lock_nested+0x3c/0x5c
       ihid_goodix_vdd_notify+0x30/0x94
       notifier_call_chain+0x6c/0x8c
       blocking_notifier_call_chain+0x48/0x70
       _notifier_call_chain.isra.0+0x18/0x20
       _regulator_enable+0xc0/0x178
       regulator_enable+0x40/0x7c
       goodix_i2c_hid_power_up+0x18/0x20
       i2c_hid_core_power_up.isra.0+0x1c/0x2c
       i2c_hid_core_probe+0xd8/0x3d4
       i2c_hid_of_goodix_probe+0x14c/0x158
       i2c_device_probe+0x25c/0x270
       really_probe+0x174/0x2cc
       __driver_probe_device+0xc0/0xd8
       driver_probe_device+0x50/0xe4
       __device_attach_driver+0xa8/0xc0
       bus_for_each_drv+0x9c/0xc0
       __device_attach_async_helper+0x6c/0xbc
       async_run_entry_fn+0x38/0x100
       process_one_work+0x294/0x438
       worker_thread+0x180/0x258
       kthread+0x120/0x130
       ret_from_fork+0x10/0x20

other info that might help us debug this:

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&(&rdev->notifier)->rwsem);
                               lock(&ihid_goodix->regulator_mutex);
                               lock(&(&rdev->notifier)->rwsem);
  lock(&ihid_goodix->regulator_mutex);

 *** DEADLOCK ***

Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Fixes: 18eeef46d3 ("HID: i2c-hid: goodix: Tie the reset line to true state of the regulator")
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-02-02 14:47:46 +01:00
Christophe JAILLET
0f20394823 HID: amd_sfh: Remove useless DMA-32 fallback configuration
As stated in [1], dma_set_mask() with a 64-bit mask never fails if
dev->dma_mask is non-NULL.
So, if it fails, the 32 bits case will also fail for the same reason.

Simplify code and remove some dead code accordingly.

[1]: https://lore.kernel.org/linux-kernel/YL3vSPK5DXTNvgdx@infradead.org/#t

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-01-24 09:14:02 +01:00
Dongliang Mu
817b8b9c53 HID: elo: fix memory leak in elo_probe
When hid_parse() in elo_probe() fails, it forgets to call usb_put_dev to
decrease the refcount.

Fix this by adding usb_put_dev() in the error handling code of elo_probe().

Fixes: fbf42729d0 ("HID: elo: update the reference count of the usb device structure")
Reported-by: syzkaller <syzkaller@googlegroups.com>
Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-01-24 09:03:21 +01:00
Alex Henrie
e26a78057c HID: apple: Set the tilde quirk flag on the Wellspring 5 and later
Markus reports that his 2011 MacBook with a German ISO keyboard (USB
product code 05ac:0246, HID country code 13) has the tilde key quirk.
Seeing as all of the standalone Apple ISO keyboards since about 2008
have the quirk, it seems reasonable to assume that once the integrated
laptop keyboards started having the quirk, they likewise never stopped
having it.

Reported-by: Markus Wageringel <markus.wageringel@gmail.com>
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-01-21 16:16:27 +01:00
Linus Torvalds
9b57f45898 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID fixes from Jiri Kosina:

 - fix for race condition that could lead to NULL pointer dereferences
   or UAF during uhid device destruction (Jann Horn)

 - contact count handling regression fixes for Wacom devices (Jason
   Gerecke)

 - fix for handling unnumbered HID reports handling in Google Vivaldi
   driver (Dmitry Torokhov)

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
  HID: wacom: Avoid using stale array indicies to read contact count
  HID: wacom: Ignore the confidence flag when a touch is removed
  HID: wacom: Reset expected and received contact counts at the same time
  HID: uhid: Use READ_ONCE()/WRITE_ONCE() for ->running
  HID: uhid: Fix worker destroying device without any protection
  HID: vivaldi: Minor cleanups
  HID: vivaldi: fix handling devices not using numbered reports
  HID: Ignore battery for Elan touchscreen on HP Envy X360 15t-dr100
2022-01-21 16:25:38 +02:00
Linus Torvalds
3c7c25038b Merge tag 'block-5.17-2022-01-21' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
 "Various little minor fixes that should go into this release:

   - Fix issue with cloned bios and IO accounting (Christoph)

   - Remove redundant assignments (Colin, GuoYong)

   - Fix an issue with the mq-deadline async_depth sysfs interface (me)

   - Fix brd module loading race (Tetsuo)

   - Shared tag map wakeup fix (Laibin)

   - End of bdev read fix (OGAWA)

   - srcu leak fix (Ming)"

* tag 'block-5.17-2022-01-21' of git://git.kernel.dk/linux-block:
  block: fix async_depth sysfs interface for mq-deadline
  block: Fix wrong offset in bio_truncate()
  block: assign bi_bdev for cloned bios in blk_rq_prep_clone
  block: cleanup q->srcu
  block: Remove unnecessary variable assignment
  brd: remove brd_devices_mutex mutex
  aoe: remove redundant assignment on variable n
  loop: remove redundant initialization of pointer node
  blk-mq: fix tag_get wait task can't be awakened
2022-01-21 16:17:03 +02:00
Jason Gerecke
20f3cf5f86 HID: wacom: Avoid using stale array indicies to read contact count
If we ever see a touch report with contact count data we initialize
several variables used to read the contact count in the pre-report
phase. These variables are never reset if we process a report which
doesn't contain a contact count, however. This can cause the pre-
report function to trigger a read of arbitrary memory (e.g. NULL
if we're lucky) and potentially crash the driver.

This commit restores resetting of the variables back to default
"none" values that were used prior to the commit mentioned
below.

Link: https://github.com/linuxwacom/input-wacom/issues/276
Fixes: 003f50ab67 (HID: wacom: Update last_slot_field during pre_report phase)
CC: stable@vger.kernel.org
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Reviewed-by: Ping Cheng <ping.cheng@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-01-21 15:10:02 +01:00
Jason Gerecke
df03e9bd6d HID: wacom: Ignore the confidence flag when a touch is removed
AES hardware may internally re-classify a contact that it thought was
intentional as a palm. Intentional contacts are reported as "down" with
the confidence bit set. When this re-classification occurs, however, the
state transitions to "up" with the confidence bit cleared. This kind of
transition appears to be legal according to Microsoft docs, but we do
not handle it correctly. Because the confidence bit is clear, we don't
call `wacom_wac_finger_slot` and update userspace. This causes hung
touches that confuse userspace and interfere with pen arbitration.

This commit adds a special case to ignore the confidence flag if a contact
is reported as removed. This ensures we do not leave a hung touch if one
of these re-classification events occured. Ideally we'd have some way to
also let userspace know that the touch has been re-classified as a palm
and needs to be canceled, but that's not possible right now :)

Link: https://github.com/linuxwacom/input-wacom/issues/288
Fixes: 7fb0413baa (HID: wacom: Use "Confidence" flag to prevent reporting invalid contacts)
CC: stable@vger.kernel.org
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Reviewed-by: Ping Cheng <ping.cheng@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-01-21 15:10:02 +01:00
Jason Gerecke
546e41ac99 HID: wacom: Reset expected and received contact counts at the same time
These two values go hand-in-hand and must be valid for the driver to
behave correctly. We are currently lazy about updating the values and
rely on the "expected" code flow to take care of making sure they're
valid at the point they're needed. The "expected" flow changed somewhat
with commit f8b6a74719 ("HID: wacom: generic: Support multiple tools
per report"), however. This led to problems with the DTH-2452 due (in
part) to *all* contacts being fully processed -- even those past the
expected contact count. Specifically, the received count gets reset to
0 once all expected fingers are processed, but not the expected count.
The rest of the contacts in the report are then *also* processed since
now the driver thinks we've only processed 0 of N expected contacts.

Later commits such as 7fb0413baa (HID: wacom: Use "Confidence" flag to
prevent reporting invalid contacts) worked around the DTH-2452 issue by
skipping the invalid contacts at the end of the report, but this is not
a complete fix. The confidence flag cannot be relied on when a contact
is removed (see the following patch), and dealing with that condition
re-introduces the DTH-2452 issue unless we also address this contact
count laziness. By resetting expected and received counts at the same
time we ensure the driver understands that there are 0 more contacts
expected in the report. Similarly, we also make sure to reset the
received count if for some reason we're out of sync in the pre-report
phase.

Link: https://github.com/linuxwacom/input-wacom/issues/288
Fixes: f8b6a74719 ("HID: wacom: generic: Support multiple tools per report")
CC: stable@vger.kernel.org
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Reviewed-by: Ping Cheng <ping.cheng@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-01-21 15:10:02 +01:00
Linus Torvalds
f3a78227ee Merge tag 'io_uring-5.17-2022-01-21' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:

 - Fix the io_uring POLLFREE handling, similarly to how it was done for
   aio (Pavel)

 - Remove (now) unused function (Jiapeng)

 - Small series fixing an issue with work cancelations. A window exists
   where work isn't locatable in the pending list, and isn't active in a
   worker yet either. (me)

* tag 'io_uring-5.17-2022-01-21' of git://git.kernel.dk/linux-block:
  io-wq: delete dead lock shuffling code
  io_uring: perform poll removal even if async work removal is successful
  io-wq: add intermediate work step between pending list and active work
  io-wq: perform both unstarted and started work cancelations in one go
  io-wq: invoke work cancelation with wqe->lock held
  io-wq: make io_worker lock a raw spinlock
  io-wq: remove useless 'work' argument to __io_worker_busy()
  io_uring: fix UAF due to missing POLLFREE handling
  io_uring: Remove unused function req_ref_put
2022-01-21 16:07:21 +02:00
Linus Torvalds
1f40caa080 Merge tag 'sound-fix-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
 "A small set of HD-audio and USB-audio fixes as well as a couple of
  ALSA core fixes. Most of them are fix-ups for the newly added CS35L41
  codec"

* tag 'sound-fix-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda/cs8409: Add new Warlock SKUs to patch_cs8409
  ALSA: core: Simplify snd_power_ref_and_wait() with the standard macro
  ALSA: hda: cs35l41: Make cs35l41_hda_remove() return void
  ALSA: hda: cs35l41: Tidyup code
  ALSA: hda: cs35l41: Make use of the helper function dev_err_probe()
  ALSA: hda: cs35l41: Add missing default cases
  ALSA: hda: cs35l41: Move cs35l41* calls to its own symbol namespace
  ALSA: hda: cs35l41: Add calls to newly added test key function
  ALSA: hda: cs35l41: Avoid overwriting register patch
  ALSA: core: Fix SSID quirk lookup for subvendor=0
  ALSA: usb-audio: add mapping for MSI MPG X570S Carbon Max Wifi.
  ALSA: hda/realtek: fix speakers and micmute on HP 855 G8
2022-01-21 13:49:22 +02:00
Linus Torvalds
75242f31db Merge tag 'rtc-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
 "Two new drivers this cycle and a significant rework of the CMOS driver
  make the bulk of the changes.

  I also carry powerpc changes with the agreement of Michael.

  New drivers:
   - Sunplus SP7021 RTC
   - Nintendo GameCube, Wii and Wii U RTC

  Driver updates:
   - cmos: refactor UIP handling and presence check, fix century
   - rs5c372: offset correction support, report low voltage
   - rv8803: Epson RX8804 support"

* tag 'rtc-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (33 commits)
  rtc: sunplus: fix return value in sp_rtc_probe()
  rtc: cmos: Evaluate century appropriate
  rtc: gamecube: Fix an IS_ERR() vs NULL check
  rtc: mc146818-lib: fix signedness bug in mc146818_get_time()
  dt-bindings: rtc: qcom-pm8xxx-rtc: update register numbers
  rtc: pxa: fix null pointer dereference
  rtc: ftrtc010: Use platform_get_irq() to get the interrupt
  rtc: Move variable into switch case statement
  rtc: pcf2127: Fix typo in comment
  dt-bindings: rtc: Add Sunplus RTC json-schema
  rtc: Add driver for RTC in Sunplus SP7021
  rtc: rs5c372: fix incorrect oscillation value on r2221tl
  rtc: rs5c372: add offset correction support
  rtc: cmos: avoid UIP when writing alarm time
  rtc: cmos: avoid UIP when reading alarm time
  rtc: mc146818-lib: refactor mc146818_does_rtc_work
  rtc: mc146818-lib: refactor mc146818_get_time
  rtc: mc146818-lib: extract mc146818_avoid_UIP
  rtc: mc146818-lib: fix RTC presence check
  rtc: Check return value from mc146818_get_time()
  ...
2022-01-21 13:13:35 +02:00
Linus Torvalds
c2c94b3b18 Merge tag 'drm-next-2022-01-21' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
 "Thanks to Daniel for taking care of things while I was out, just a set
  of merge window fixes that came in this week, two i915 display fixes
  and a bunch of misc amdgpu, along with a radeon regression fix.

  amdgpu:
   - SR-IOV fix
   - VCN harvest fix
   - Suspend/resume fixes
   - Tahiti fix
   - Enable GPU recovery on yellow carp

  radeon:
   - Fix error handling regression in radeon_driver_open_kms

  i915:
   - Update EHL display voltage swing table
   - Fix programming the ADL-P display TC voltage swing"

* tag 'drm-next-2022-01-21' of git://anongit.freedesktop.org/drm/drm:
  drm/radeon: fix error handling in radeon_driver_open_kms
  drm/amd/amdgpu: fixing read wrong pf2vf data in SRIOV
  drm/amdgpu: apply vcn harvest quirk
  drm/i915/display/adlp: Implement new step in the TC voltage swing prog sequence
  drm/i915/display/ehl: Update voltage swing table
  drm/amd/display: Revert W/A for hard hangs on DCN20/DCN21
  drm/amdgpu: drop flags check for CHIP_IP_DISCOVERY
  drm/amdgpu: Fix rejecting Tahiti GPUs
  drm/amdgpu: don't do resets on APUs which don't support it
  drm/amdgpu: invert the logic in amdgpu_device_should_recover_gpu()
  drm/amdgpu: Enable recovery on yellow carp
2022-01-21 09:25:38 +02:00
Linus Torvalds
39e77c484b Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
 "Some hot fixes for clk driver patches merged last week and one oops
  fix:

   - Fix license on recent MediaTek drivers

   - Initialize a variable before use in the new Visconti driver

   - Avoid an oops by unregistering the clk provider in si5341"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: mediatek: relicense mt7986 clock driver to GPL-2.0
  clk: visconti: Fix uninitialized variable in printk
  clk: si5341: Fix clock HW provider cleanup
2022-01-21 09:16:11 +02:00
Linus Torvalds
4141a5e694 Merge tag 'pci-v5.17-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull pci fix from Bjorn Helgaas:

 - Reserve "stolen memory" for integrated Intel GPU, even if it's not
   the first GPU to be enumerated (Lucas De Marchi)

* tag 'pci-v5.17-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  x86/gpu: Reserve stolen memory for first integrated Intel GPU
2022-01-21 09:10:46 +02:00
Linus Torvalds
85e67d56eb Merge tag 's390-5.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull more s390 updates from Heiko Carstens:

 - add Sven Schnelle as reviewer for s390 code

 - make uaccess code more readable

 - change cpu measurement facility code to also support counter second
   version number 7, and add discard support for limited samples

* tag 's390-5.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390: add Sven Schnelle as reviewer
  s390/uaccess: introduce bit field for OAC specifier
  s390/cpumf: Support for CPU Measurement Sampling Facility LS bit
  s390/cpumf: Support for CPU Measurement Facility CSVN 7
2022-01-21 08:57:15 +02:00
Linus Torvalds
31d949782e Merge tag 'xfs-5.17-merge-6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull more xfs irix ioctl housecleaning from Darrick Wong:
 "Withdraw the XFS_IOC_ALLOCSP* and XFS_IOC_FREESP* ioctl definitions.

  This is the third and final of a series of small pull requests that
  perform some long overdue housecleaning of XFS ioctls. This time,
  we're withdrawing all variants of the ALLOCSP and FREESP ioctls from
  XFS' userspace API. This might be a little premature since we've only
  just removed the functionality, but as I pointed out in the last pull
  request, nobody (including fstests) noticed that it was broken for 20
  years.

  In response to the patch, we received a single comment from someone
  who stated that they 'augment' the ioctl for their own purposes, but
  otherwise acquiesced to the withdrawal. I still want to try to clobber
  these old ioctl definitions in 5.17.

  So remove the header definitions for these ioctls. The just-removed
  implementation has allowed callers to read stale disk contents for
  more than **21 years** and nobody noticed or complained, which implies
  a lack of users aside from exploit programs"

* tag 'xfs-5.17-merge-6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: remove the XFS_IOC_{ALLOC,FREE}SP* definitions
2022-01-21 08:51:48 +02:00
Linus Torvalds
d701a8ccac Merge tag 'xfs-5.17-merge-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs irix ioctl housecleaning from Darrick Wong:
 "Remove the XFS_IOC_ALLOCSP* and XFS_IOC_FREESP* ioctl families.

  This is the second of a series of small pull requests that perform
  some long overdue housecleaning of XFS ioctls. This time, we're
  vacating the implementation of all variants of the ALLOCSP and FREESP
  ioctls, which are holdovers from EFS in Irix, circa 1993. Roughly
  equivalent functionality have been available for both ioctls since
  2.6.25 (April 2008):

   - XFS_IOC_FREESP ftruncates a file.

   - XFS_IOC_ALLOCSP is the equivalent of fallocate.

  As noted in the fix patch for CVE 2021-4155, the ALLOCSP ioctl has
  been serving up stale disk blocks since 2000, and in 21 years
  **nobody** noticed. On those grounds I think it's safe to vacate the
  implementation.

  Note that we lose the ability to preallocate and truncate relative to
  the current file position, but as nobody's ever implemented that for
  the VFS, I conclude that it's not in high demand.

  Linux has always used fallocate as the space management system call,
  whereas these Irix legacy ioctls only ever worked on XFS, and have
  been the cause of recent stale data disclosure vulnerabilities. As
  equivalent functionality is available elsewhere, remove the code"

* tag 'xfs-5.17-merge-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: kill the XFS_IOC_{ALLOC,FREE}SP* ioctls
2022-01-21 08:47:25 +02:00
Linus Torvalds
12a8fb20f1 Merge tag 'xfs-5.17-merge-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs ioctl housecleaning from Darrick Wong:
 "This is the first of a series of small pull requests that perform some
  long overdue housecleaning of XFS ioctls. This first pull request
  removes the FSSETDM ioctl, which was used to set DMAPI event
  attributes on XFS files. The DMAPI support has never been merged
  upstream and the implementation of FSSETDM itself was removed two
  years ago, so let's withdraw it completely.

   - Withdraw the ioctl definition for the FSSETDM ioctl"

* tag 'xfs-5.17-merge-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: remove the XFS_IOC_FSSETDM definitions
2022-01-21 08:44:07 +02:00
Dave Airlie
ccf3458675 Merge tag 'amd-drm-fixes-5.17-2022-01-19' of https://gitlab.freedesktop.org/agd5f/linux into drm-next
amd-drm-fixes-5.17-2022-01-19:

amdgpu:
- SR-IOV fix
- VCN harvest fix
- Suspend/resume fixes
- Tahiti fix
- Enable GPU recovery on yellow carp

radeon:
- Fix error handling regression in radeon_driver_open_kms

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220120013547.5649-1-alexander.deucher@amd.com
2022-01-21 08:37:56 +10:00
Dave Airlie
410482b51a Merge tag 'drm-intel-next-fixes-2022-01-20' of git://anongit.freedesktop.org/drm/drm-intel into drm-next
- Latest updates for the EHL display voltage swing table (José Roberto de Souza)
- Additional step is required when programming the ADL-P display TC voltage swing (José Roberto de Souza)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Yek1zdsnRPiBVvFF@tursulin-mobl2
2022-01-21 08:31:29 +10:00
Jens Axboe
46cdc45acb block: fix async_depth sysfs interface for mq-deadline
A previous commit added this feature, but it inadvertently used the wrong
variable to show/store the setting from/to, victimized by copy/paste. Fix
it up so that the async_depth sysfs interface reads and writes from the
right setting.

Fixes: 07757588e5 ("block/mq-deadline: Reserve 25% of scheduler tags for synchronous requests")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215485
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-01-20 10:54:02 -07:00
Linus Torvalds
2c271fe77d Merge tag 'gpio-fixes-for-v5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
 "Fix the same error check issue in two drivers. And then the drivers
  are fixed even more because the first patches were incomplete which I
  missed.

  Summary:

   - fix the error checks of platform_get_irq() in gpio-mpc8xxx and
     gpio-idt3243x"

* tag 'gpio-fixes-for-v5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  gpio: mpc8xxx: Fix an ignored error return from platform_get_irq()
  gpio: idt3243x: Fix an ignored error return from platform_get_irq()
  gpio: idt3243x: Fix IRQ check in idt_gpio_probe
  gpio: mpc8xxx: Fix IRQ check in mpc8xxx_probe
2022-01-20 17:38:23 +02:00
Stefan Binding
2a1355f0bf ALSA: hda/cs8409: Add new Warlock SKUs to patch_cs8409
Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
Signed-off-by: Vitaly Rodionov <vitalyr@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220120105618.249144-1-vitalyr@opensource.cirrus.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-01-20 14:32:26 +01:00
OGAWA Hirofumi
3ee859e384 block: Fix wrong offset in bio_truncate()
bio_truncate() clears the buffer outside of last block of bdev, however
current bio_truncate() is using the wrong offset of page. So it can
return the uninitialized data.

This happened when both of truncated/corrupted FS and userspace (via
bdev) are trying to read the last of bdev.

Reported-by: syzbot+ac94ae5f68b84197f41c@syzkaller.appspotmail.com
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/875yqt1c9g.fsf@mail.parknet.co.jp
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-01-20 06:30:12 -07:00
Linus Torvalds
64f29d8856 Merge tag 'ceph-for-5.17-rc1' of git://github.com/ceph/ceph-client
Pull ceph updates from Ilya Dryomov:
 "The highlight is the new mount "device" string syntax implemented by
  Venky Shankar. It solves some long-standing issues with using
  different auth entities and/or mounting different CephFS filesystems
  from the same cluster, remounting and also misleading /proc/mounts
  contents. The existing syntax of course remains to be maintained.

  On top of that, there is a couple of fixes for edge cases in quota and
  a new mount option for turning on unbuffered I/O mode globally instead
  of on a per-file basis with ioctl(CEPH_IOC_SYNCIO)"

* tag 'ceph-for-5.17-rc1' of git://github.com/ceph/ceph-client:
  ceph: move CEPH_SUPER_MAGIC definition to magic.h
  ceph: remove redundant Lsx caps check
  ceph: add new "nopagecache" option
  ceph: don't check for quotas on MDS stray dirs
  ceph: drop send metrics debug message
  rbd: make const pointer spaces a static const array
  ceph: Fix incorrect statfs report for small quota
  ceph: mount syntax module parameter
  doc: document new CephFS mount device syntax
  ceph: record updated mon_addr on remount
  ceph: new device mount syntax
  libceph: rename parse_fsid() to ceph_parse_fsid() and export
  libceph: generalize addr/ip parsing based on delimiter
2022-01-20 13:46:20 +02:00
Linus Torvalds
67ed868d23 Merge tag '5.17-rc-ksmbd-server-fixes' of git://git.samba.org/ksmbd
Pull ksmbd server fixes from Steve French:

 - authentication fix

 - RDMA (smbdirect) fixes (including fix for a memory corruption, and
   some performance improvements)

 - multiple improvements for multichannel

 - misc fixes, including crediting (flow control) improvements

 - cleanup fixes, including some kernel doc fixes

* tag '5.17-rc-ksmbd-server-fixes' of git://git.samba.org/ksmbd: (23 commits)
  ksmbd: fix guest connection failure with nautilus
  ksmbd: uninitialized variable in create_socket()
  ksmbd: smbd: fix missing client's memory region invalidation
  ksmbd: add smb-direct shutdown
  ksmbd: smbd: change the default maximum read/write, receive size
  ksmbd: smbd: create MR pool
  ksmbd: add reserved room in ipc request/response
  ksmbd: smbd: call rdma_accept() under CM handler
  ksmbd: limits exceeding the maximum allowable outstanding requests
  ksmbd: move credit charge deduction under processing request
  ksmbd: add support for smb2 max credit parameter
  ksmbd: set 445 port to smbdirect port by default
  ksmbd: register ksmbd ib client with ib_register_client()
  ksmbd: Fix smb2_get_name() kernel-doc comment
  ksmbd: Delete an invalid argument description in smb2_populate_readdir_entry()
  ksmbd: Fix smb2_set_info_file() kernel-doc comment
  ksmbd: Fix buffer_check_err() kernel-doc comment
  ksmbd: fix multi session connection failure
  ksmbd: set both ipv4 and ipv6 in FSCTL_QUERY_NETWORK_INTERFACE_INFO
  ksmbd: set RSS capable in FSCTL_QUERY_NETWORK_INTERFACE_INFO
  ...
2022-01-20 13:39:13 +02:00
Linus Torvalds
c5a0b6e40d Merge tag 'vfio-v5.17-rc1' of git://github.com/awilliam/linux-vfio
Pull VFIO updates from Alex Williamson:

 - Fix sparse endian warnings in IGD code (Alex Williamson)

 - Balance kvzalloc with kvfree (Jiacheng Shi)

* tag 'vfio-v5.17-rc1' of git://github.com/awilliam/linux-vfio:
  vfio/iommu_type1: replace kfree with kvfree
  vfio/pci: Resolve sparse endian warnings in IGD support
2022-01-20 13:31:46 +02:00
Linus Torvalds
41652aae67 Merge tag 'pwm/for-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
Pull pwm updates from Thierry Reding:
 "This contains a number of nice cleanups and improvements for the core
  and various drivers, as well as a minor tweak to the json-schema
  device tree bindings"

* tag 'pwm/for-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
  dt-bindings: pwm: Avoid selecting schema on node name match
  pwm: img: Use only a single idiom to get a runtime PM reference
  pwm: vt8500: Implement .apply() callback
  pwm: img: Implement .apply() callback
  pwm: twl: Implement .apply() callback
  pwm: Restore initial state if a legacy callback fails
  pwm: Prevent a glitch for legacy drivers
  pwm: Move legacy driver handling into a dedicated function
2022-01-20 13:25:01 +02:00
Linus Torvalds
fa2e1ba3e9 Merge tag 'net-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
 "Including fixes from netfilter, bpf.

  Quite a handful of old regression fixes but most of those are
  pre-5.16.

  Current release - regressions:

   - fix memory leaks in the skb free deferral scheme if upper layer
     protocols are used, i.e. in-kernel TCP readers like TLS

  Current release - new code bugs:

   - nf_tables: fix NULL check typo in _clone() functions

   - change the default to y for Vertexcom vendor Kconfig

   - a couple of fixes to incorrect uses of ref tracking

   - two fixes for constifying netdev->dev_addr

  Previous releases - regressions:

   - bpf:
      - various verifier fixes mainly around register offset handling
        when passed to helper functions
      - fix mount source displayed for bpffs (none -> bpffs)

   - bonding:
      - fix extraction of ports for connection hash calculation
      - fix bond_xmit_broadcast return value when some devices are down

   - phy: marvell: add Marvell specific PHY loopback

   - sch_api: don't skip qdisc attach on ingress, prevent ref leak

   - htb: restore minimal packet size handling in rate control

   - sfp: fix high power modules without diagnostic monitoring

   - mscc: ocelot:
      - don't let phylink re-enable TX PAUSE on the NPI port
      - don't dereference NULL pointers with shared tc filters

   - smsc95xx: correct reset handling for LAN9514

   - cpsw: avoid alignment faults by taking NET_IP_ALIGN into account

   - phy: micrel: use kszphy_suspend/_resume for irq aware devices,
     avoid races with the interrupt

  Previous releases - always broken:

   - xdp: check prog type before updating BPF link

   - smc: resolve various races around abnormal connection termination

   - sit: allow encapsulated IPv6 traffic to be delivered locally

   - axienet: fix init/reset handling, add missing barriers, read the
     right status words, stop queues correctly

   - add missing dev_put() in sock_timestamping_bind_phc()

  Misc:

   - ipv4: prevent accidentally passing RTO_ONLINK to
     ip_route_output_key_hash() by sanitizing flags

   - ipv4: avoid quadratic behavior in netns dismantle

   - stmmac: dwmac-oxnas: add support for OX810SE

   - fsl: xgmac_mdio: add workaround for erratum A-009885"

* tag 'net-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (92 commits)
  ipv4: add net_hash_mix() dispersion to fib_info_laddrhash keys
  ipv4: avoid quadratic behavior in netns dismantle
  net/fsl: xgmac_mdio: Fix incorrect iounmap when removing module
  powerpc/fsl/dts: Enable WA for erratum A-009885 on fman3l MDIO buses
  dt-bindings: net: Document fsl,erratum-a009885
  net/fsl: xgmac_mdio: Add workaround for erratum A-009885
  net: mscc: ocelot: fix using match before it is set
  net: phy: micrel: use kszphy_suspend()/kszphy_resume for irq aware devices
  net: cpsw: avoid alignment faults by taking NET_IP_ALIGN into account
  nfc: llcp: fix NULL error pointer dereference on sendmsg() after failed bind()
  net: axienet: increase default TX ring size to 128
  net: axienet: fix for TX busy handling
  net: axienet: fix number of TX ring slots for available check
  net: axienet: Fix TX ring slot available check
  net: axienet: limit minimum TX ring size
  net: axienet: add missing memory barriers
  net: axienet: reset core on initialization prior to MDIO access
  net: axienet: Wait for PhyRstCmplt after core reset
  net: axienet: increase reset timeout
  bpf, selftests: Add ringbuf memory type confusion test
  ...
2022-01-20 10:57:05 +02:00
Linus Torvalds
f4484d138b Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton:
 "55 patches.

  Subsystems affected by this patch series: percpu, procfs, sysctl,
  misc, core-kernel, get_maintainer, lib, checkpatch, binfmt, nilfs2,
  hfs, fat, adfs, panic, delayacct, kconfig, kcov, and ubsan"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (55 commits)
  lib: remove redundant assignment to variable ret
  ubsan: remove CONFIG_UBSAN_OBJECT_SIZE
  kcov: fix generic Kconfig dependencies if ARCH_WANTS_NO_INSTR
  lib/Kconfig.debug: make TEST_KMOD depend on PAGE_SIZE_LESS_THAN_256KB
  btrfs: use generic Kconfig option for 256kB page size limit
  arch/Kconfig: split PAGE_SIZE_LESS_THAN_256KB from PAGE_SIZE_LESS_THAN_64KB
  configs: introduce debug.config for CI-like setup
  delayacct: track delays from memory compact
  Documentation/accounting/delay-accounting.rst: add thrashing page cache and direct compact
  delayacct: cleanup flags in struct task_delay_info and functions use it
  delayacct: fix incomplete disable operation when switch enable to disable
  delayacct: support swapin delay accounting for swapping without blkio
  panic: remove oops_id
  panic: use error_report_end tracepoint on warnings
  fs/adfs: remove unneeded variable make code cleaner
  FAT: use io_schedule_timeout() instead of congestion_wait()
  hfsplus: use struct_group_attr() for memcpy() region
  nilfs2: remove redundant pointer sbufs
  fs/binfmt_elf: use PT_LOAD p_align values for static PIE
  const_structs.checkpatch: add frequently used ops structs
  ...
2022-01-20 10:41:01 +02:00
Yang Li
9f51ce0b9e gpio: mpc8xxx: Fix an ignored error return from platform_get_irq()
The return from the call to platform_get_irq() is int, it can be
a negative error code, however this is being assigned to an unsigned
int variable 'irqn', so making 'irqn' an int.

Eliminate the following coccicheck warning:
./drivers/gpio/gpio-mpc8xxx.c:391:5-21: WARNING: Unsigned expression
compared with zero: mpc8xxx_gc -> irqn < 0

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Fixes: 0b39536cc6 ("gpio: mpc8xxx: Fix IRQ check in mpc8xxx_probe")
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2022-01-20 09:05:57 +01:00
Yang Li
7c1cf55577 gpio: idt3243x: Fix an ignored error return from platform_get_irq()
The return from the call to platform_get_irq() is int, it can be
a negative error code, however this is being assigned to an unsigned
int variable 'parent_irq', so making 'parent_irq' an int.

Eliminate the following coccicheck warning:
./drivers/gpio/gpio-idt3243x.c:167:6-16: WARNING: Unsigned expression
compared with zero: parent_irq < 0

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Fixes: 30fee1d746 ("gpio: idt3243x: Fix IRQ check in idt_gpio_probe")
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2022-01-20 09:05:46 +01:00
Colin Ian King
b1e78ef3be lib: remove redundant assignment to variable ret
The variable ret is being assigned a value that is never read.  If the
for-loop is entered then ret is immediately re-assigned a new value.  If
the for-loop is not executed ret is never read.  The assignment is
redundant and can be removed.

Link: https://lkml.kernel.org/r/20211230134557.83633-1-colin.i.king@gmail.com
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-20 08:52:55 +02:00