CIFS: Make ops->close return void

Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Steve French <smfrench@gmail.com>

diff --cc fs/cifs/cifsglob.h
Simple merge

diff --cc fs/cifs/file.c
Simple merge

diff --cc fs/cifs/smb1ops.c
Simple merge

diff --cc fs/cifs/smb2ops.c
Simple merge