--- zzzz-none-000/linux-4.4.60/drivers/mtd/nand/nand_ecc.c	2017-04-08 07:53:53.000000000 +0000
+++ wasp-540e-714/linux-4.4.60/drivers/mtd/nand/nand_ecc.c	2019-07-03 09:21:34.000000000 +0000
@@ -507,7 +507,7 @@
 		return 1;	/* error in ECC data; no action needed */
 
 	pr_err("%s: uncorrectable ECC error\n", __func__);
-	return -1;
+	return -EBADMSG;
 }
 EXPORT_SYMBOL(__nand_correct_data);