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dxfer_len is an unsigned int and we always assign a value > 0 to it, so it doesn't make any sense to check if it is < 0. We can't really check dxferp as well as we have both NULL and not NULL cases in the possible call paths. So just return true for SG_DXFER_FROM_DEV transfer in sg_is_valid_dxfer(). Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Reported-by: Colin Ian King <colin.king@canonical.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: Douglas Gilbert <dgilbert@interlog.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.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.