Commit a92c721d authored Jun 06, 2016 by Boris Brezillon

mtd: nand: sunxi: check ecc->size values

Verify that the ecc->size value is either 512 or 1024 bytes.
This should always be the case if this field was assigned to the
nand->ecc_step_size_ds value, but can be wrong when the user overloaded
this value with the nand-ecc-step-size DT property.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>

parent 872164e4

drivers/mtd/nand/sunxi_nand.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -1786,6 +1786,9 @@ static int sunxi_nand_hw_common_ecc_ctrl_init(struct mtd_info *mtd,
		if (!data)
		return -ENOMEM;

		if (ecc->size != 512 && ecc->size != 1024)
		return -EINVAL;

		/* Prefer 1k ECC chunk over 512 ones */
		if (ecc->size == 512 && mtd->writesize > 512) {
		ecc->size = 1024;