sunxi_nfc_read_buf(mtd, oob, ecc->bytes + 4);
if (status & NFC_ECC_ERR(0)) {
- ret = -EIO;
+ ret = nand_check_erased_ecc_chunk(data, ecc->size,
+ oob, ecc->bytes + 4,
+ NULL, 0, ecc->strength);
} else {
/*
* The engine protects 4 bytes of OOB data per chunk.