[PATCH v2 7/7] mtd: nand: sunxi: fix bitflips in erased pages
From: Boris Brezillon <hidden>
Date: 2015-09-30 21:45:29
Subsystem:
memory technology devices (mtd), nand flash subsystem, the rest · Maintainers:
Miquel Raynal, Richard Weinberger, Vignesh Raghavendra, Linus Torvalds
Use the nand_check_erased_ecc_chunk() function to test if the ECC error was triggered by an erased page containing a few bitflips. Signed-off-by: Boris Brezillon <redacted> --- drivers/mtd/nand/sunxi_nand.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/nand/sunxi_nand.c b/drivers/mtd/nand/sunxi_nand.c
index a76eb51..92245a3 100644
--- a/drivers/mtd/nand/sunxi_nand.c
+++ b/drivers/mtd/nand/sunxi_nand.c@@ -611,7 +611,9 @@ static int sunxi_nfc_hw_ecc_read_chunk(struct mtd_info *mtd, 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.
--
2.1.4