dm-raid1.c: In rh_exit(), use list_for_each_entry_safe instead of
list_for_each_safe.
Signed-off-by: Kevin Corry <kevcorry@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>