03e9f8a05b
The function virtqueue_get_buf_ctx() could return NULL, the return value 'buf' need to be checked with NULL, not value 'ctx'. Signed-off-by: Yunjian Wang <wangyunjian@huawei.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. 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.