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btrfs_get_extent() never returns NULL pointers, so this code introduces a static checker warning. The btrfs_get_extent() is a bit complex, but trust me that it doesn't return NULLs and also if it did we would trigger the BUG_ON(!em) before the last return statement. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> [ updated subject ] Signed-off-by: David Sterba <dsterba@suse.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.