nanddev_pos_to_offs
nanddev_pos_to_offs(nand, pos), ret);
nanddev_pos_to_offs(nand, pos));
einfo->fail_addr = nanddev_pos_to_offs(nand, &pos);
return nand_markbad_bbm(chip, nanddev_pos_to_offs(nand, pos));
ret = nand_isbad_bbm(chip, nanddev_pos_to_offs(nand, pos));