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[ Upstream commit72ea032108] p9_tag_alloc() is supposed to return error pointers, but we accidentally return a NULL here. It would cause a NULL dereference in the caller. Link: http://lkml.kernel.org/m/20180926103934.GA14535@mwanda Fixes:996d5b4db4("9p: Use a slab for allocating requests") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Dominique Martinet <dominique.martinet@cea.fr> 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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.