null pointer dereferencing in reiserfs_read_bitmap_block.
Signed-off-by: NAlexander Zarochentsev <zam@namesys.com>
Cc: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>