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When the driver fails to probe, we will get the following splat: [ 19.311970] ------------[ cut here ]------------ [ 19.312566] WARNING: CPU: 3 PID: 375 at drivers/regulator/core.c:2257 _regulator_put+0x3ec/0x4e0 [ 19.317591] RIP: 0010:_regulator_put+0x3ec/0x4e0 [ 19.328831] Call Trace: [ 19.329112] <TASK> [ 19.329369] regulator_bulk_free+0x82/0xe0 [ 19.329860] devres_release_group+0x319/0x3d0 [ 19.330357] i2c_device_probe+0x766/0x940 Fix this by adding a callback that will deal with the disabling when the driver fails to probe. Signed-off-by: Zheyu Ma <zheyuma97@gmail.com> Link: https://lore.kernel.org/r/20220409022629.3493557-1-zheyuma97@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.