From 9aca334e854c319ccafea871006fda3814196e7b Mon Sep 17 00:00:00 2001 From: Maxim Levitsky Date: Mon, 22 Feb 2010 20:39:35 +0200 Subject: [PATCH] mtd: nand: make MTD_OOB_PLACE work correctly. MTD_OOB_PLACE is supposed to read/write the raw oob data similiar to the MTD_OOB_RAW however due to a bug, currently it is not possible to read more data that is specified by the oob 'free' regions. Signed-off-by: Maxim Levitsky Signed-off-by: David Woodhouse --- drivers/mtd/nand/nand_base.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 7442b3a29b25..cada4cffacf8 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -1420,6 +1420,9 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from, int ret = 0; uint32_t readlen = ops->len; uint32_t oobreadlen = ops->ooblen; + uint32_t max_oobsize = ops->mode == MTD_OOB_AUTO ? + mtd->oobavail : mtd->oobsize; + uint8_t *bufpoi, *oob, *buf; stats = mtd->ecc_stats; @@ -1470,10 +1473,11 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from, buf += bytes; if (unlikely(oob)) { + /* Raw mode does data:oob:data:oob */ if (ops->mode != MTD_OOB_RAW) { int toread = min(oobreadlen, - chip->ecc.layout->oobavail); + max_oobsize); if (toread) { oob = nand_transfer_oob(chip, oob, ops, toread); -- 2.34.1