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d4fab7b28e
There were two ways to return an error code; one was via setting the 'err' variable, and the second, if err was zero, was via the 'ret' variable. This was both confusing and fragile, and when code was factored out of __ext4_fill_super(), some of the error codes returned by the original code was replaced by -EINVAL, and in one case, the error code was placed by 0, triggering a kernel null pointer dereference. Clean this up by removing the 'ret' variable, leaving only one way to set the error code to be returned, and restore the errno codes that were returned via the the mount system call as they were before we started refactoring __ext4_fill_super(). Signed-off-by: Theodore Ts'o <tytso@mit.edu> Reviewed-by: Jason Yan <yanaijie@huawei.com> |
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| ipc | ||
| kernel | ||
| lib | ||
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| .clang-format | ||
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| README | ||
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.