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.

This is fixed by using i instead of section.

Signed-off-by: OuYang ZhiZhong <oyzhizh...@gmail.com>
---
 drivers/mtd/mtdchar.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index de8c902..0cc929e 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -468,7 +468,7 @@ static int shrink_ecclayout(struct mtd_info *mtd,
                            struct nand_ecclayout_user *to)
 {
        struct mtd_oob_region oobregion;
-       int i, section = 0, ret;
+       int i, ret;
 
        if (!mtd || !to)
                return -EINVAL;
@@ -479,7 +479,7 @@ static int shrink_ecclayout(struct mtd_info *mtd,
        for (i = 0; i < MTD_MAX_ECCPOS_ENTRIES;) {
                u32 eccpos;
 
-               ret = mtd_ooblayout_ecc(mtd, section, &oobregion);
+               ret = mtd_ooblayout_ecc(mtd, i, &oobregion);
                if (ret < 0) {
                        if (ret != -ERANGE)
                                return ret;
@@ -515,7 +515,7 @@ static int shrink_ecclayout(struct mtd_info *mtd,
 static int get_oobinfo(struct mtd_info *mtd, struct nand_oobinfo *to)
 {
        struct mtd_oob_region oobregion;
-       int i, section = 0, ret;
+       int i, ret;
 
        if (!mtd || !to)
                return -EINVAL;
@@ -526,7 +526,7 @@ static int get_oobinfo(struct mtd_info *mtd, struct 
nand_oobinfo *to)
        for (i = 0; i < ARRAY_SIZE(to->eccpos);) {
                u32 eccpos;
 
-               ret = mtd_ooblayout_ecc(mtd, section, &oobregion);
+               ret = mtd_ooblayout_ecc(mtd, i, &oobregion);
                if (ret < 0) {
                        if (ret != -ERANGE)
                                return ret;
-- 
1.7.9.5

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