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8bce6dcede
erofs_vmap() wrapped vmap() and vm_map_ram() to return virtual continuous memory, but both of them can failed due to a lot of reason, previously, erofs_vmap()'s callers didn't handle them, which can potentially cause NULL pointer access, fix it. Fixes:3883a79abd("staging: erofs: introduce VLE decompression support") Fixes:0d40d6e399("staging: erofs: add a generic z_erofs VLE decompressor") Cc: <stable@vger.kernel.org> # 4.19+ Signed-off-by: Gao Xiang <gaoxiang25@huawei.com> Signed-off-by: Chao Yu <yuchao0@huawei.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.