On Wed, Oct 13, 2021 at 11:33 PM Uwe Kleine-König
[off-list ref] wrote:

Hello,

this series is part of my quest to change the return type of the spi
driver .remove() callback to void. In this first stage I fix all drivers
to return 0 to be able to mechanically change all drivers in the final
step.

Returning an error code (which actually very few drivers do) doesn't
make much sense, because the only effect is that the spi core emits an
error message.

The same holds try for i2c drivers, some of them are fixed en passant.

There are no interdependencies in this series, and there is some more
work to do for the final conversion, so apply the patches from this
series at will :-)

Series looks good.
However this set also makes a case for doing more conversions to devm_
usage in probe.

With devm_ , we get slightly less code, with some mirrored unwinding
in error and remove paths.
There are currently ~170 places (not necessarily the same amount of
drivers), where devm_ can be used.

What I typically do is run this command in a kernel tree:  "git grep
-w iio_device_unregister | wc -l"
When I run it without "wc -l", I will pick a file and take a look
inside it and check it's convertibility to using
devm_iio_device_unregister()
The rationale is, that for IIO drivers, if you get
devm_iio_device_unregister() (properly) called last, then it's fully
converted to devm_ functions.

For this series particularly:

Reviewed-by: Alexandru Ardelean <redacted>

Best regards
Uwe

Uwe Kleine-König (15):
  iio: accel: bma400: Make bma400_remove() return void
  iio: accel: bmc150: Make bmc150_accel_core_remove() return void
  iio: accel: bmi088: Make bmi088_accel_core_remove() return void
  iio: accel: kxsd9: Make kxsd9_common_remove() return void
  iio: accel: mma7455: Make mma7455_core_remove() return void
  iio: accel: ad5064: Make ad5064_core_remove() return void
  iio: dac: ad5380: Make ad5380_remove() return void
  iio: dac: ad5446: Make ad5446_remove() return void
  iio: dac: ad5592r: Make ad5592r_remove() return void
  iio: dac: ad5686: Make ad5686_remove() return void
  iio: health: afe4403: Don't return an error in .remove()
  iio: imu: st_lsm9ds0: Make st_lsm9ds0_remove() return void
  iio: magn: hmc5843: Make hmc5843_common_remove() return void
  iio: potentiometer: max5487: Don't return an error in .remove()
  iio: pressure: ms5611: Make ms5611_remove() return void

 drivers/iio/accel/bma400.h                   |  2 +-
 drivers/iio/accel/bma400_core.c              |  7 ++++---
 drivers/iio/accel/bma400_i2c.c               |  4 +++-
 drivers/iio/accel/bma400_spi.c               |  4 +++-
 drivers/iio/accel/bmc150-accel-core.c        |  4 +---
 drivers/iio/accel/bmc150-accel-i2c.c         |  4 +++-
 drivers/iio/accel/bmc150-accel-spi.c         |  4 +++-
 drivers/iio/accel/bmc150-accel.h             |  2 +-
 drivers/iio/accel/bmi088-accel-core.c        |  4 +---
 drivers/iio/accel/bmi088-accel-spi.c         |  4 +++-
 drivers/iio/accel/bmi088-accel.h             |  2 +-
 drivers/iio/accel/kxsd9-i2c.c                |  4 +++-
 drivers/iio/accel/kxsd9-spi.c                |  4 +++-
 drivers/iio/accel/kxsd9.c                    |  4 +---
 drivers/iio/accel/kxsd9.h                    |  2 +-
 drivers/iio/accel/mma7455.h                  |  2 +-
 drivers/iio/accel/mma7455_core.c             |  4 +---
 drivers/iio/accel/mma7455_i2c.c              |  4 +++-
 drivers/iio/accel/mma7455_spi.c              |  4 +++-
 drivers/iio/dac/ad5064.c                     | 12 +++++++-----
 drivers/iio/dac/ad5380.c                     | 15 ++++++++-------
 drivers/iio/dac/ad5446.c                     | 12 +++++++-----
 drivers/iio/dac/ad5592r-base.c               |  4 +---
 drivers/iio/dac/ad5592r-base.h               |  2 +-
 drivers/iio/dac/ad5592r.c                    |  4 +++-
 drivers/iio/dac/ad5593r.c                    |  4 +++-
 drivers/iio/dac/ad5686-spi.c                 |  4 +++-
 drivers/iio/dac/ad5686.c                     |  4 +---
 drivers/iio/dac/ad5686.h                     |  2 +-
 drivers/iio/dac/ad5696-i2c.c                 |  4 +++-
 drivers/iio/health/afe4403.c                 |  6 ++----
 drivers/iio/imu/st_lsm9ds0/st_lsm9ds0.h      |  2 +-
 drivers/iio/imu/st_lsm9ds0/st_lsm9ds0_core.c |  4 +---
 drivers/iio/imu/st_lsm9ds0/st_lsm9ds0_i2c.c  |  4 +++-
 drivers/iio/imu/st_lsm9ds0/st_lsm9ds0_spi.c  |  4 +++-
 drivers/iio/magnetometer/hmc5843.h           |  2 +-
 drivers/iio/magnetometer/hmc5843_core.c      |  4 +---
 drivers/iio/magnetometer/hmc5843_i2c.c       |  4 +++-
 drivers/iio/magnetometer/hmc5843_spi.c       |  4 +++-
 drivers/iio/potentiometer/max5487.c          |  7 ++++++-
 drivers/iio/pressure/ms5611.h                |  2 +-
 drivers/iio/pressure/ms5611_core.c           |  4 +---
 drivers/iio/pressure/ms5611_i2c.c            |  4 +++-
 drivers/iio/pressure/ms5611_spi.c            |  4 +++-
 44 files changed, 110 insertions(+), 81 deletions(-)


base-commit: 9e1ff307c779ce1f0f810c7ecce3d95bbae40896
--
2.30.2