Message ID | 1415206793-25670-7-git-send-email-lee.jones@linaro.org |
---|---|
State | Changes Requested |
Headers | show |
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 4f3e80c..d0ebb05 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -4063,6 +4063,8 @@ int nand_scan_tail(struct mtd_info *mtd) } ecc->total = ecc->steps * ecc->bytes; + WARN_ON(ecc->total > mtd->oobsize); + /* Allow subpage writes up to ecc.steps. Not possible for MLC flash */ if (!(chip->options & NAND_NO_SUBPAGE_WRITE) && nand_is_slc(chip)) { switch (ecc->steps) {
EEC information is held in the Out-Of-Bounds (OOB) area, so can not be larger than the area it's stored in. If the math is out, we issue a warning to the user. Signed-off-by: Lee Jones <lee.jones@linaro.org> --- drivers/mtd/nand/nand_base.c | 2 ++ 1 file changed, 2 insertions(+)