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0f87aa66e8
The commita3cb39d258("serial: core: Allow detach and attach serial device for console") changed a bit logic behind lock initialization since for most of the console driver it's supposed to have lock already initialized even if console is not enabled. However, it's not the case for Sparc HV console. Initialize lock explicitly in the ->probe(). Note, there is still an open question should or shouldn't not this driver register console properly. Fixes:a3cb39d258("serial: core: Allow detach and attach serial device for console") Reported-by: Anatoly Pugachev <matorola@gmail.com> Cc: David Miller <davem@davemloft.net> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Tested-by: Anatoly Pugachev <matorola@gmail.com> Link: https://lore.kernel.org/r/20200402172026.79478-1-andriy.shevchenko@linux.intel.com 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.