From: Vitaly Wool <vwool@ru.mvista.com>
Date: Sat, 16 Sep 2006 19:15:58 +0000 (-0700)
Subject: [PATCH] MTD NAND: OOB buffer offset fixups
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=96da96065bd66164acc3c8a1ea6db4ee765537e9;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

[PATCH] MTD NAND: OOB buffer offset fixups

In the case of data-pad-ecc-pad-data...  layout the oob start position has
to be sizeof(data) in nand_write_oob_syndrom().

In nand_fill_oob() we need to copy to buf + buffer offset instead of buf +
write offset.

Signed-off-by: Vitaly Wool <vwool@ru.mvista.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index c8cbc00243f..0a54d003ef3 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -1204,7 +1204,7 @@ static int nand_write_oob_syndrome(struct mtd_info *mtd,
 		pos = steps * (eccsize + chunk);
 		steps = 0;
 	} else
-		pos = eccsize + chunk;
+		pos = eccsize;
 
 	chip->cmdfunc(mtd, NAND_CMD_SEQIN, pos, page);
 	for (i = 0; i < steps; i++) {
@@ -1567,7 +1567,7 @@ static uint8_t *nand_fill_oob(struct nand_chip *chip, uint8_t *oob,
 				bytes = min_t(size_t, len, free->length);
 				boffs = free->offset;
 			}
-			memcpy(chip->oob_poi + woffs, oob, bytes);
+			memcpy(chip->oob_poi + boffs, oob, bytes);
 			oob += bytes;
 		}
 		return oob;