diff --git a/drivers/mtd/nand/raw/sunxi_nand.c b/drivers/mtd/nand/raw/sunxi_nand.c
index 83666dd6cb2a..c84f304fb749 100644
--- a/drivers/mtd/nand/raw/sunxi_nand.c
+++ b/drivers/mtd/nand/raw/sunxi_nand.c
@@ -2084,6 +2084,9 @@ static int sunxi_nand_hw_ecc_ctrl_init(struct nand_chip *nand,
 	if (nanddev->ecc.user_conf.flags & NAND_ECC_MAXIMIZE_STRENGTH) {
 		int bytes = mtd->oobsize;
 
+		if (mtd->writesize < 1024)
+			return -EINVAL;
+
 		ecc->size = 1024;
 		nsectors = mtd->writesize / ecc->size;