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175fb4a3cc
regulator->debugfs is NULL when sysfs_create_link_nowarn() return -EEXIST, and triggering the following warning: [ 2.426974] debugfs: File 'uA_load' in directory '/' already present! [ 2.426983] debugfs: File 'min_uV' in directory '/' already present! [ 2.426991] debugfs: File 'max_uV' in directory '/' already present! [ 2.426999] debugfs: File 'constraint_flags' in directory '/' already present! Fixes:08880713ce("regulator: core: Streamline debugfs operations") Fixes:2715bb11cf("regulator: core: Fix more error checking for debugfs_create_dir()") Signed-off-by: Tao Huang <huangtao@rock-chips.com> Change-Id: Iab0b91cacba410705a643d7198eee4f70e1108d5
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.