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-rw-r--r--drivers/mtd/nand/nand_base.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 4047d7c2fee..d47586cf64c 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -1791,6 +1791,7 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from,
int readlen = ops->ooblen;
int len;
uint8_t *buf = ops->oobbuf;
+ int ret = 0;
pr_debug("%s: from = 0x%08Lx, len = %i\n",
__func__, (unsigned long long)from, readlen);
@@ -1826,9 +1827,12 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from,
while (1) {
if (ops->mode == MTD_OPS_RAW)
- chip->ecc.read_oob_raw(mtd, chip, page);
+ ret = chip->ecc.read_oob_raw(mtd, chip, page);
else
- chip->ecc.read_oob(mtd, chip, page);
+ ret = chip->ecc.read_oob(mtd, chip, page);
+
+ if (ret < 0)
+ break;
len = min(len, readlen);
buf = nand_transfer_oob(chip, buf, ops, len);
@@ -1857,7 +1861,10 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from,
}
}
- ops->oobretlen = ops->ooblen;
+ ops->oobretlen = ops->ooblen - readlen;
+
+ if (ret < 0)
+ return ret;
if (mtd->ecc_stats.failed - stats.failed)
return -EBADMSG;