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b3a5016976
Stop enabling the oscillator and removing the oscillator failure flags in probe. Instead, return -EINVAL in .read_time when the oscillaotr is not start or when it failed at some point. The oscillator gets enabled on the first .set_time after failure and the failure flags are cleared. This also removes the possibility of an infinite loop at probe where a failing RTC will make the goto read_rtc to be taken every time. Tested on mcp79411. Reported-by: Mastro Gippo <gipmad@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.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
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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.