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[ Upstream commitfd4b824387] A call of the function do_take_over_console() can fail here. The corresponding system resources were not released then. Thus add a call of iounmap() and release_mem_region() together with the check of a failure predicate. and also add release_mem_region() on device removal. Fixes:e86bb8acc0("[PATCH] VT binding: Make newport_con support binding") Suggested-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> cc: Thomas Gleixner <tglx@linutronix.de> Cc: Andrew Morton <akpm@osdl.org> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200423164251.3349-1-zhengdejin5@gmail.com Signed-off-by: Sasha Levin <sashal@kernel.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.