driver core: add devm_device_add_group() and friends

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Many drivers create additional driver-specific device attributes when
binding to the device, and providing managed version of
device_create_group() will simplify unbinding and error handling in probe
path for such drivers.

Without managed version driver writers either have to mix manual and
managed resources, which is prone to errors, or open-code this function by
providing a wrapper to device_add_group() and use it with devm_add_action()
or devm_add_action_or_reset().

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Dmitry Torokhov 2017-07-19 17:24:33 -07:00 • committed by Greg Kroah-Hartman

parent e323b2dddc

commit 57b8ff070f

2 changed files with 139 additions and 0 deletions

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130

drivers/base/core.c

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9

include/linux/device.h

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