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4dec5f1af6
No need to keep around the dentry pointer for the debugfs file if all it is used for is to remove it when we are wanting to clean up, as the pointer can be looked up directly from debugfs instead. This also removes pointless #ifdef CONFIG_DEBUG_FS brackets as the compiler is smart enough to handle this properly if debugfs is disabled without us having to worry about it. Cc: Jiri Slaby <jirislaby@kernel.org> Cc: linux-serial@vger.kernel.org Link: https://lore.kernel.org/r/20210216145900.3835160-1-gregkh@linuxfoundation.org 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.