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0f6f874987
These functions currently modify the struct dump_context passed to them, and set context->actual to -EFAULT in case of error. The issue is that this is never returned to the user (except accidentally when things align so that that happens). So, have these functions return 0 on success and the appropriate error code otherwise, and return nonzero errors to the user. Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Marcelo Diop-Gonzalez <marcgonzalez@google.com> Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Link: https://lore.kernel.org/r/20191120202102.249121-5-marcgonzalez@google.com 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.