I _think_ shmem_file_setup is protected against negative loff_t size by the
TASK_SIZE in each arch, but prefer the security of an explicit test.  Wipe
those parentheses off its return(file), and update our Copyright.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>