[PATCH v3 0/3] i2c: introduce devm_i2c_new_dummy and use it in at24 driver

Heiner Kallweit
2017-12-13T19:02:44Z

i2c_new_dummy is typically called from the probe function of the
driver for the primary i2c client. It requires calls to
i2c_unregister_device in the error path of the probe function and
in the remove function.
This can be simplified by introducing a device-managed version.

Make at24 driver the first user of the new function.

Changes in v2:
- add change to i2c core to make a version of i2c_new_device
available which returns an ERR_PTR instead of NULL in error case
- few minor improvements

Changes in v3:
- rename _i2c_new_device to __i2c_new_device

Heiner Kallweit (3):
i2c: core: improve return value handling of i2c_new_device and i2c_new_dummy
i2c: core: add device-managed version of i2c_new_dummy
eeprom: at24: switch to device-managed version of i2c_new_dummy

Documentation/driver-model/devres.txt | 3 ++
drivers/i2c/i2c-core-base.c | 94 ++++++++++++++++++++++++++++-------
drivers/misc/eeprom/at24.c | 31 ++++--------
include/linux/i2c.h | 3 ++
4 files changed, 94 insertions(+), 37 deletions(-)

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2.15.1