Fixes oops (reference to cdrom_root_table->child->) when CONFIG_SYSCTL=y
and CONFIG_PROC_FS=n.
Signed-off-by: Randy Dunlap <rddunlap@osdl.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>