IIO: 2nd set of fixes for the 7.1 cycle.
Usual mixed bag of ancient issues and the recently introduced.
Various drivers
- Ensure use of simple_write_to_buffer() in debugfs callbacks doesn't
result in reading off the end of intended data by checking the
position is always 0.
buffer/hw-consumer
- Ensure scan_mask is freed on buffer release.
acpi-als
- Check ACPI_COMPANION() against NULL to close corner case where a
driver is overridden.
adi,ad4062
- Add GPIOLIB dependency to avoid undefined ref to gpiochip_get_data()
adi.ad7768-1
- Add GPIOLIB dependency to avoid several undefined functions.
adi,ad2s1210
- Ensure possible recovery path if a read fails in the interrupt handler.
bosch,bmg160
- Increase sleep on startup to ensure device is ready.
bosch,bmp280
- Ensure buffer pushed to kfifo is zeroed to avoid leaking uninitialized
stack data to userspace.
dyna-image,al3010
- Fix refactor that stopped reading one of the two measurement registers.
dyna-image,al3320a
- Fix refactor that stopped reading one of the two measurement registers.
qcom,spmi-iadc
- Ensure disable_irq_wake() is called on remove path.
sensiron,scd30
- Fix a sign extension bug.
st,vl5310x
- Ensure possible recovery path if a read fails in the interrupt handler.
ti,adc1298
- Bounds check for pga_settings index. Hardening against device returning
unexpected values.
ti,tmp006
- Ensure trigger correctly released on remove path.
vishay,veml6030
- Fix incorrect channel type in events.
vishay,veml6074
- Bounds check for veml6075_it_ms. Hardening against device returning
unexpected values.
* tag 'iio-fixes-for-7.1b' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (23 commits)
iio: adc: ad_sigma_delta: fix clear_pending_event for registerless devices
iio: adc: ad_sigma_delta: fix CS held asserted and state leaks
iio: light: opt3001: fix missing state reset on timeout
iio: chemical: scd30: Cleanup initializations and fix sign-extension bug
iio: core: fix uninitialized data in debugfs
iio: backend: fix uninitialized data in debugfs
iio: dac: ad3552r-hs: fix uninitialized data ni ad3552r_hs_write_data_source()
iio: adc: qcom-spmi-iadc: balance enable_irq_wake() on driver unbind
iio: light: al3320a: read both ALS ADC registers again
iio: light: al3010: read both ALS ADC registers again
iio: temperature: tmp006: use devm_iio_trigger_register
iio: buffer: hw-consumer: free scan_mask on buffer release
iio: adc: ad7768-1: Select GPIOLIB
iio: light: veml6030: fix channel type when pushing events
iio: light: acpi-als: Check ACPI_COMPANION() against NULL
iio: resolver: ad2s1210: notify trigger and clear state on fault read error
iio: proximity: vl53l0x: notify trigger and clear IRQ on error paths
iio: gyro: bmg160: wait full startup time after mode change at probe
iio: gyro: bmg160: bail out when bandwidth/filter is not in table
iio: pressure: bmp280: zero-init bmp580 trigger handler buffer
...
The function was only used to verify if als_persist is a
TSL2591_PRST_ALS_INT_CYCLE_* value. However, before its call in
tsl2591_write_event_value(), the line
als_persist = tsl2591_persist_lit_to_cycle(period) is executed,
meaning that by the time tsl2591_compatible_als_persist_cycle()
is reached, als_persist is a TSL2591_PRST_ALS_INT_CYCLE_* value,
making the verification pointless.
Suggested-by: Sashiko <sashiko-bot@kernel.org>
Link: https://sashiko.dev/#/patchset/20260528185912.24774-1-matheus.feitosa%40usp.br
Signed-off-by: Lucas Rabaquim <lucas.rabaquim@usp.br>
Co-developed-by: Matheus Silveira <matheus.feitosa@usp.br>
Signed-off-by: Matheus Silveira <matheus.feitosa@usp.br>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Add support for the Vishay VEML3328 RGB/IR light sensor communicating
via I2C (SMBus compatible).
Also add a new entry for said driver into Kconfig and Makefile.
Assisted-by: Gemini:3.1-Pro
Signed-off-by: Joshua Crofts <joshua.crofts1@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Replace switch statements with an indexed lookup table for
persist cycle conversions.
Both functions contain redundant switch statements. This
reduces code duplication and makes future updates to
TSL2591_PRST_ALS_INT_CYCLE_* definitions easier to maintain
by keeping the mapping in a single place.
Signed-off-by: Matheus Silveira <matheus.feitosa@usp.br>
Co-developed-by: Lucas Rabaquim <lucas.rabaquim@usp.br>
Signed-off-by: Lucas Rabaquim <lucas.rabaquim@usp.br>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Add IIO driver for Broadcom APDS9999 ambient light sensor.
The APDS9999 is a digital proximity and RGB sensor with ALS
capability. The driver implements the ALS/Lux functionality
using the green channel, which uses optical coating technology
to approximate the human eye spectral response.
Raw IIO_INTENSITY channels are exposed for red, green, blue,
and IR so userspace can compute its own weighted lux.
Proximity (PS) support is not yet implemented.
Signed-off-by: Jose A. Perez de Azpillaga <azpijr@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Use IIO_CHAN_SOFT_TIMESTAMP() to define the timestamp channel instead of
manually filling in the struct iio_chan_spec fields. This makes the code
less verbose and mistake-prone.
Also drop obvious comment while we're at it.
Signed-off-by: David Lechner <dlechner@baylibre.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Move the trailing 'return -EINVAL' statements at the end of
tcs3472_read_raw() and tcs3472_write_raw() into explicit default:
cases inside the respective switch statements.
This removes the need for a separate return statement
after the switch.
No functional change.
Suggested-by: Andy Shevchenko <andy@kernel.org>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Reviewed-by: Joshua Crofts <joshua.crofts1@gmail.com>
Signed-off-by: Aldo Conte <aldocontelk@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Use the local 'struct device *dev' variable introduced for the devm
calls also for the dev_info() calls in tcs3472_probe(), to keep the
probe function consistent.
No functional change.
Signed-off-by: Aldo Conte <aldocontelk@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Convert the driver to use device-managed resource allocation:
- Add tcs3472_powerdown_action() and register it with
devm_add_action_or_reset() to ensure the device is powered down on
cleanup.
- Replace iio_triggered_buffer_setup() with
devm_iio_triggered_buffer_setup().
- Replace request_threaded_irq() with devm_request_threaded_irq().
- Replace iio_device_register() with devm_iio_device_register().
- Replace mutex_init() with devm_mutex_init().
- Remove tcs3472_remove() as all cleanup is now handled by devm.
Use a local 'dev = &client->dev' in tcs3472_probe() to keep the devm
calls compact.
Signed-off-by: Aldo Conte <aldocontelk@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Convert several functions to use guard(mutex)()
This avoids manual unlock calls on each return path, drops the goto
in tcs3472_write_event(), and removes 'ret' variables only needed to
return after the unlock.
While the conversion is in progress, take the opportunity to make a
few small cleanups that guard() enables:
- In tcs3472_read_event_config(), replace '!!(...)' with
'(...) ? 1 : 0' for readability.
- In tcs3472_write_event_config(), tcs3472_powerdown() and
tcs3472_resume() use an early return on the I2C
write failure path.
No functional change.
Signed-off-by: Aldo Conte <aldocontelk@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Sort the #include directives in alphabetical order in preparation for
adding new headers in upcoming patches.
No functional change.
Suggested-by: Andy Shevchenko <andy@kernel.org>
Reviewed-by: Joshua Crofts <joshua.crofts1@gmail.com>
Signed-off-by: Aldo Conte <aldocontelk@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
If tcs3472_probe() fails after enabling the chip (by writing PON | AEN
to the ENABLE register), the error paths return without powering down
the device.
Add an 'error_powerdown' label at the end of the cleanup chain that
calls tcs3472_powerdown() to power down the chip. The existing label
cascade is rerouted to fall through to the new label.
Move tcs3472_powerdown() above tcs3472_probe() so the probe can call
it without a forward declaration.
Found by code inspection while reviewing the probe error paths in
preparation for the devm_ conversion.
Fixes: eb869ade30 ("iio: Add tcs3472 color light sensor driver")
Signed-off-by: Aldo Conte <aldocontelk@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Replace the local prox_adjust_channel_bit_mask() function with a
compound literal for scan_type initialization to improve code
readability.
Signed-off-by: Natália Salvino André <natalia.andre@ime.usp.br>
Co-developed-by: Pietro Di Consolo Gregorio <pietro.gregorio@usp.br>
Signed-off-by: Pietro Di Consolo Gregorio <pietro.gregorio@usp.br>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Replace the local als_adjust_channel_bit_mask() function with a
compound literal for scan_type initialization to improve code
readability.
Signed-off-by: Natália Salvino André <natalia.andre@ime.usp.br>
Co-developed-by: Pietro Di Consolo Gregorio <pietro.gregorio@usp.br>
Signed-off-by: Pietro Di Consolo Gregorio <pietro.gregorio@usp.br>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
While being less compact, using named initializers allows to more easily
see which members of the structs are assigned which value without having
to lookup the declaration of the struct. And it's also more robust
against changes to the struct definition.
The mentioned robustness is relevant for a planned change to struct
i2c_device_id that replaces .driver_data by an anonymous union.
This patch doesn't modify the compiled arrays, only their representation
in source form benefits. The former was confirmed with x86 and arm64
builds.
Signed-off-by: Uwe Kleine-König (The Capable Hub) <u.kleine-koenig@baylibre.com>
Reviewed-by: Siratul Islam <email@sirat.me>
Reviewed-by: Matti Vaittinen <mazziesaccount@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This is dead code as the IT index is not used by gts to set the new scale.
In its current form, the value is read but not used afterward. Remove
the dead code.
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Use GENMASK() and BIT() macros from bits.h header where it makes
sense. While at it, remove unused macro.
No functional change.
Signed-off-by: Joshua Crofts <joshua.crofts1@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Remove kernel.h proxy header, device.h, irq.h, slab.h as they are
unnecessary and add missing headers (array_size.h, dev_printk.h,
errno.h, jiffies.h, wait.h) to enforce IWYU principle and reduce
transitive dependencies. Also, replace bitops.h with bits.h as only
the BIT() macro is used.
Signed-off-by: Joshua Crofts <joshua.crofts1@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Use guard() and scoped_guard() for handling mutex lock instead of manually
locking and unlocking. Remove gotos in error handling logic. This prevents
forgotten locks on early exits.
Signed-off-by: Raffael Raiel Trindade <raffaelraiel@usp.br>
Co-developed-by: Kim Carvalho <kim.ca@usp.br>
Signed-off-by: Kim Carvalho <kim.ca@usp.br>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
For the four drivers the .driver_data member of i2c_device_id is
write-only. Drop the explicit assignment.
While touching these arrays use a named initializer to assign the .name
member, which is easier to parse for a human.
Signed-off-by: Uwe Kleine-König (The Capable Hub) <u.kleine-koenig@baylibre.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Handle errors as early as possible by replacing 'if (!ret)' with the
more common form 'if (ret)'. This makes the code easier to read.
Signed-off-by: Pedro Barletta Gennari <pedro.pbg@usp.br>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Use guard(mutex)() for handling mutex lock instead of
manually locking and unlocking the mutex. This prevents forgotten
locks due to early exits and removes the need of gotos.
Signed-off-by: Pedro Barletta Gennari <pedro.pbg@usp.br>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Remove mutex_lock()/mutex_unlock() and goto instances and add
guard(mutex)() macro to modernize driver and improve mutex handling.
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Joshua Crofts <joshua.crofts1@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Add local variable for timeout to improve readability.
No functional change.
Suggested-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Joshua Crofts <joshua.crofts1@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Sashiko reported a bug where the si1133_command exits on timeout
without halting the sensor or masking the interrupt. If the sensor
completes the command later, any subsequent command to the sensor
will cause the IRQ handler to complete immediately, returning stale
data to the driver all while the command hasn't finished yet, shifting
all potential reads in the future.
Fix this by masking the IRQ if wait_for_completion_timeout() fails.
When initiating a new command, do a dummy read of the IRQ_STATUS
register and turn the IRQ back on.
Fixes: e01e7eaf37 ("iio: light: introduce si1133")
Reported-by: sashiko-bot <sashiko-bot@kernel.org>
Closes: https://sashiko.dev/#/message/20260428-si1133-checkup-v2-5-70ad14bfefe2%40gmail.com
Assisted-by: gemini:gemini-3.1-pro-preview
Signed-off-by: Joshua Crofts <joshua.crofts1@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Sashiko reported a potential race condition happening when the driver
returns an errno after a timeout in the si1133_command() function. The
premature exit causes the hardware and software counters to become out
of sync by not updating data->rsp_seq, therefore the internal hardware
counter keeps incrementing.
Fix this by adding a call to si1133_cmd_reset_counter() before returning
from timeout.
Fixes: e01e7eaf37 ("iio: light: introduce si1133")
Reported-by: sashiko-bot <sashiko-bot@kernel.org>
Closes: https://sashiko.dev/#/message/20260428-si1133-checkup-v2-5-70ad14bfefe2%40gmail.com
Assisted-by: gemini:gemini-3.1-pro-preview
Signed-off-by: Joshua Crofts <joshua.crofts1@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
By convention MODULE_DEVICE_TABLE() immediately follows the ID table it
exports, because this is easier to read and verify. It also makes more
sense since #ifdef for ACPI or OF could hide both of them.
Most of the drivers already have this correctly placed, so adjust
the missing ones. No functional impact.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Replace the uint32_t type members in struct stk3310_data with u32
to adhere to the unified kernel coding style, and reorder the member
variables to eliminate memory padding holes.
Suggested-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Miao Li <limiao@kylinos.cn>
Reviewed-by: Joshua Crofts <joshua.crofts1@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
On the Inspur HS326 laptop(which integrated with HiSilicon M900
processor), if the STK3311-X chip's PS interrupt is configured
in "Recommended interrupt mode", the interrupt cannot be triggered
normally after waking from suspend or hibernation.
In this case, neither disabling and re-enabling the interrupt nor
resetting the PS threshold register can restore the interrupt to
normal operation.
If the interrupt is disabled in suspend() then reset the PS threshold
register and enable the interrupt in resume(). This resolves the issue.
Signed-off-by: Miao Li <limiao@kylinos.cn>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Clean up the included headers in stk3310.c according to the
Include-What-You-Use (IWYU) tool. Remove the generic <linux/kernel.h>
header and add explicit dependencies to improve compilation accuracy.
Co-developed-by: Felipe Khoury Dayoub <felipedayoub@usp.br>
Signed-off-by: Felipe Khoury Dayoub <felipedayoub@usp.br>
Signed-off-by: Rafael G. Dias <rafael.guimaraes.dias@usp.br>
Reviewed-by: Joshua Crofts <joshua.crofts1@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Currently in the function opt3001_get_processed(), there is a check
that directly returns -ETIMEDOUT if the conversion IRQ times out,
completely bypassing the err label, leaving ok_to_ignore_lock
permanently true, potentially breaking the device's falling threshold
interrupt detection.
Assign -ETIMEDOUT to the return variable and jump to the error label
to ensure ok_to_ignore_lock is properly reset.
Fixes: 26d90b5590 ("iio: light: opt3001: Fixed timeout error when 0 lux")
Reported-by: Sashiko <sashiko-bot@kernel.org>
Closes: https://sashiko.dev/#/patchset/20260525-opt3001-cleanup-v4-0-65b36a174f78%40gmail.com?part=1
Signed-off-by: Joshua Crofts <joshua.crofts1@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
al3320a_read_raw() used to read two adjacent registers
until the driver was modernized using the regmap framework.
That cleanup accidentally replaced the 16-bit word read
with a single byte read. I'm reverting latter.
Fixes: 1850e6ae7f ("iio: light: al3320a: Implement regmap support")
Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
al3010_read_raw() used to read two adjacent registers
until the driver was modernized using the regmap framework.
That cleanup accidentally replaced the 16-bit word read
with a single byte read. I'm reverting latter.
Fixes: 0e5e21e23d ("iio: light: al3010: Implement regmap support")
Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
The events are registered for IIO_LIGHT and not for IIO_INTENSITY.
Use the correct channel type.
When at it, fix minor checkpatch code style warning (alignment).
Cc: stable@vger.kernel.org
Fixes: 7b779f573c ("iio: light: add driver for veml6030 ambient light sensor")
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Every platform driver can be forced to match a device that doesn't match
its list of device IDs because of device_match_driver_override(), so
platform drivers that rely on the existence of a device's ACPI companion
object need to verify its presence.
Accordingly, add a requisite ACPI_COMPANION() check against NULL to the
acpi-als IIO driver.
Fixes: d4243cb08a ("iio: light: acpi-als: Convert ACPI driver to a platform one")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
veml6075_it_ms has 5 elements but VEML6075_CONF_IT can yield values 0-7.
If it returns a value >= 5, this causes an out-of-bounds array access.
Add a bounds check and return -EINVAL if the index is out of range.
The problem values are reserved so should never be read from the
register. Hence this is hardening against fault device, missprogramming
or bus corruption.
Assisted-by: gkh_clanker_2000
Cc: stable <stable@kernel.org>
Signed-off-by: Sam Daly <sam@samdaly.ie>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
The code stores the return value of i2c_smbus_write_word_data()
in data->reg_conf; however, this value represents the result
of the write operation and not the value actually written to
the configuration register. This meant that the contents of
data->reg_conf did not truly reflect the contents
of the hardware register.
Instead, save the value of the register before the write
and use this value in the I2C write.
The bug was found by code inspection: i2c_smbus_write_word_data()
returns 0 on success, not the value written to the register.
Tested using i2c-stub on a Raspberry Pi 3B running a custom 6.19.10
kernel. Before loading the driver, the configuration register 0x00
CM3323_CMD_CONF was populated with 0x0030 using
`i2cset -y 11 0x10 0x00 0x0030 w`, encoding an integration time of 320ms
in bits[6:4].
Due to incorrect initialization of data->reg_conf in
cm3323_init(), the print of integration_time returns 0.040000
instead of the expected 0.320000. This happens because the read of the
integration_time depends on cm3323_get_it_bits() that is based on the
value of data->reg_conf, which is erroneously set to 0.
With this fix applied, data->reg_conf correctly saves 0x0030 after init
and the successive integration_time reports 0.320000 as expected.
Fixes: 8b05442637 ("iio: light: Add support for Capella CM3323 color sensor")
Cc: stable@vger.kernel.org
Signed-off-by: Aldo Conte <aldocontelk@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
The driver calls i2c_new_dummy_device() to create a dummy device,
then calls i2c_smbus_write_byte(). If i2c_smbus_write_byte() fails and
returns, the cleanup via devm_add_action_or_reset() was never registered,
so the dummy device leaks.
Switch to devm_i2c_new_dummy_device() which registers cleanup atomically
with device creation, eliminating the error-path window.
Fixes: 7501bff87c ("iio: light: veml6070: add action for i2c_unregister_device")
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Felix Gu <ustc.gu@gmail.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
The Avago APDS9900/9901 has a similar register layout to the
TAOS/AMS TSL2772 but features a unique set of configurations. Add support
for the APDS9900/9901 into the TSL2772 driver by adding the required
device-specific configurations.
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Use a device-managed counterpart of iio_device_register() and remove the
redundant iio_device_unregister() call in driver remove function,
allowing us to remove vcnl4000_remove() function altogether.
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Erikas Bitovtas <xerikasxx@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Replace pm_runtime_set_active() and pm_runtime_enable() with their
device-managed counterpart to remove them from vcnl4000_remove().
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Erikas Bitovtas <xerikasxx@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Move power state setting into a device-managed action to get rid of
fail_poweroff goto label and remove it from vcnl4000_remove() function.
Signed-off-by: Erikas Bitovtas <xerikasxx@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>