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dd2f7fcb2a
[ Upstream commit 92ccbf17ee ]
When the driver fails during probing, the driver should disable the
regulator, not just handle it in wm8731_hw_init().
The following log reveals it:
[ 17.812483] WARNING: CPU: 1 PID: 364 at drivers/regulator/core.c:2257 _regulator_put+0x3ec/0x4e0
[ 17.815958] RIP: 0010:_regulator_put+0x3ec/0x4e0
[ 17.824467] Call Trace:
[ 17.824774] <TASK>
[ 17.825040] regulator_bulk_free+0x82/0xe0
[ 17.825514] devres_release_group+0x319/0x3d0
[ 17.825882] i2c_device_probe+0x766/0x940
[ 17.829198] i2c_register_driver+0xb5/0x130
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Link: https://lore.kernel.org/r/20220405121038.4094051-1-zheyuma97@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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.