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Returning a non-zero value in an i2c remove callback results in the i2c core emitting a very generic error message ("remove failed (-ESOMETHING), will be ignored") and as the message indicates not further error handling is done. Instead emit a more specific error message and then return zero in .remove(). The long-term goal is to make the i2c remove prototype return void, making all implementations return 0 is preparatory work for this change. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20220214150710.312269-1-u.kleine-koenig@pengutronix.de
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.
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