- cdev_get is only used in fs/char_dev.c; move it up, make it static and
  unexport it.

- cdev_put is used in one more place (fs/file_table.c) but never in
  modules; unexport it.
Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>