4.19-stable review patch. If anyone has any objections, please let me know.
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From: Claire Lin claire.lin@broadcom.com
commit 7f852cc1579297fd763789f8cd370639d0c654b6 upstream.
In brcmstb_nand_verify_erased_page(), the ECC chunk pointer calculation while correcting erased page bitflips is wrong, fix it.
Fixes: 02b88eea9f9c ("mtd: brcmnand: Add check for erased page bitflips") Signed-off-by: Claire Lin claire.lin@broadcom.com Reviewed-by: Ray Jui ray.jui@broadcom.com Signed-off-by: Kamal Dasu kdasu.kdev@gmail.com Signed-off-by: Miquel Raynal miquel.raynal@bootlin.com Signed-off-by: Yuta Hayama hayama@lineo.co.jp Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/mtd/nand/raw/brcmnand/brcmnand.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
--- a/drivers/mtd/nand/raw/brcmnand/brcmnand.c +++ b/drivers/mtd/nand/raw/brcmnand/brcmnand.c @@ -1753,6 +1753,7 @@ static int brcmstb_nand_verify_erased_pa int bitflips = 0; int page = addr >> chip->page_shift; int ret; + void *ecc_chunk;
if (!buf) { buf = chip->data_buf; @@ -1768,7 +1769,9 @@ static int brcmstb_nand_verify_erased_pa return ret;
for (i = 0; i < chip->ecc.steps; i++, oob += sas) { - ret = nand_check_erased_ecc_chunk(buf, chip->ecc.size, + ecc_chunk = buf + chip->ecc.size * i; + ret = nand_check_erased_ecc_chunk(ecc_chunk, + chip->ecc.size, oob, sas, NULL, 0, chip->ecc.strength); if (ret < 0)