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This change converts the probe of this driver to use device-managed register functions, and a devm_add_action_or_reset() for the regulator disable. With this, the exit & error paths can be removed. Another side-effect is that this should avoid some static-analyzer's check with respect to a potential null dereference of the regulator. The null dereference isn't likely to happen (under normal operation), so there isn't a requirement to have this fixed/backported in other releases. As a note: this is removing spi_set_drvdata() since there is no other spi_get_drvdata() (or dev_get_drvdata()) call that need it. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Cc: Colin Ian King <colin.king@canonical.com> Link: https://lore.kernel.org/r/20201127094038.91714-1-alexandru.ardelean@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.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.