The logic of the ternary operator is broken because '1 << x' is always true even if 'x' is 0. Convert the logic to really use either the pdata value or a sane default. Fixes "WARNING: Total number of ECC bytes exceeded oobsize" on my USB-A9G20. Fixes: babffbb193 ("mtd: atmel_nand: Add per board ECC setup") Signed-off-by: Wolfram Sang <wsa@xxxxxxxxxx> --- The other option is to revert babffbb193. I don't see any user. The code was obviously not enough tested as well. drivers/mtd/nand/atmel/legacy.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/nand/atmel/legacy.c b/drivers/mtd/nand/atmel/legacy.c index ea1fd64ad8..184cf465e3 100644 --- a/drivers/mtd/nand/atmel/legacy.c +++ b/drivers/mtd/nand/atmel/legacy.c @@ -1240,7 +1240,7 @@ static int __init atmel_nand_probe(struct device *dev) nand_chip->ecc.mode = pdata->ecc_mode; nand_chip->ecc.strength = pdata->ecc_strength ? : 1; - nand_chip->ecc.size = 1 << pdata->ecc_size_shift ? : 512; + nand_chip->ecc.size = 1 << (pdata->ecc_size_shift ? : 9); if (pdata->ecc_mode == NAND_ECC_HW) { nand_chip->ecc.mode = NAND_ECC_HW; -- 2.35.1