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[ Upstream commitc13de2386c] Previously, if del_mtd_device() failed with -EBUSY due to a non-zero usecount, a subsequent call to attempt the deletion again would try to remove a debugfs directory that had already been removed and panic. With this change the second call can instead proceed safely. Fixes:e8e3edb95c("mtd: create per-device and module-scope debugfs entries") Signed-off-by: Zev Weiss <zev@bewilderbeest.net> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20211014203953.5424-1-zev@bewilderbeest.net 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.