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The current code tries to get an associated clk, ignores any errors in the process and if there is a clock enables it unconditionally for the whole lifetime of the sram device. Instead use an "optional" variant of devm_clk_get() which handles the case where no clk is needed for the sram device and do proper error handling for the remaining error cases. Also use an "enabled" variant of devm_clk_get() to simplify. With that .probe() is the only function using struct sram_dev::clk, so it can be replaced by a local variable. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Link: https://lore.kernel.org/r/20230302091251.1852454-1-u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.