Patch "mtdchar: fix usage of mtd_ooblayout_ecc()" has been added to the 4.9-stable tree

This is a note to let you know that I've just added the patch titled

mtdchar: fix usage of mtd_ooblayout_ecc()

to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
mtdchar-fix-usage-of-mtd_ooblayout_ecc.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: OuYang ZhiZhong <[email protected]>
Date: Sun, 11 Mar 2018 15:59:07 +0800
Subject: mtdchar: fix usage of mtd_ooblayout_ecc()

From: OuYang ZhiZhong <[email protected]>

commit 6de564939e14327148e31ddcf769e34105176447 upstream.

Section was not properly computed. The value of OOB region definition is always ECC section 0 information in the OOB area, but we want to get all the ECC bytes information, so we should call mtd_ooblayout_ecc(mtd, section++, &oobregion) until it returns -ERANGE.

---
 drivers/mtd/mtdchar.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

@@ -487,7 +487,7 @@ static int shrink_ecclayout(struct mtd_i
 	for (i = 0; i < MTD_MAX_ECCPOS_ENTRIES;) {
 		u32 eccpos;
 
-		ret = mtd_ooblayout_ecc(mtd, section, &oobregion);
+		ret = mtd_ooblayout_ecc(mtd, section++, &oobregion);
 		if (ret < 0) {
 			if (ret != -ERANGE)
 				return ret;

@@ -534,7 +534,7 @@ static int get_oobinfo(struct mtd_info *
 	for (i = 0; i < ARRAY_SIZE(to->eccpos);) {
 		u32 eccpos;
 
-		ret = mtd_ooblayout_ecc(mtd, section, &oobregion);
+		ret = mtd_ooblayout_ecc(mtd, section++, &oobregion);
 		if (ret < 0) {
 			if (ret != -ERANGE)
 				return ret;

Patches currently in stable-queue which might be from [email protected] are

queue-4.9/mtdchar-fix-usage-of-mtd_ooblayout_ecc.patch