113 	u8 *data_buf, *oob_buf;  in nanddev_read_bbt()  local
130 	data_buf = kzalloc(bbt_page_num * mtd->writesize, GFP_KERNEL);  in nanddev_read_bbt()
131 	if (!data_buf)  in nanddev_read_bbt()
135 		kfree(data_buf);  in nanddev_read_bbt()
140 	bbt_info = (struct nanddev_bbt_info *)(data_buf + nbytes);  in nanddev_read_bbt()
144 	ops.datbuf = data_buf;  in nanddev_read_bbt()
169 	    !bbt_check_hash(data_buf, nbytes + sizeof(struct nanddev_bbt_info) - 4, bbt_info->hash)) {  in nanddev_read_bbt()
180 		memcpy(nand->bbt.cache, data_buf, nbytes);  in nanddev_read_bbt()
185 	bbt_dbg_hex("bbt", data_buf, nbytes + sizeof(struct nanddev_bbt_info));  in nanddev_read_bbt()
194 		memcpy(nand->bbt.cache, data_buf, nbytes);  in nanddev_read_bbt()
212 	kfree(data_buf);  in nanddev_read_bbt()
225 	u8 *data_buf, *oob_buf;  in nanddev_write_bbt()  local
244 	data_buf = kzalloc(bbt_page_num * mtd->writesize, GFP_KERNEL);  in nanddev_write_bbt()
245 	if (!data_buf)  in nanddev_write_bbt()
249 		kfree(data_buf);  in nanddev_write_bbt()
254 	bbt_info = (struct nanddev_bbt_info *)(data_buf + nbytes);  in nanddev_write_bbt()
256 	memcpy(data_buf, nand->bbt.cache, nbytes);  in nanddev_write_bbt()
259 	bbt_info->hash = js_hash(data_buf, nbytes + sizeof(struct nanddev_bbt_info) - 4);  in nanddev_write_bbt()
269 	ops.datbuf = data_buf;  in nanddev_write_bbt()
290 	kfree(data_buf);  in nanddev_write_bbt()