[PATCH] mtdraw: fix oob read and write

[Eric Bénard]

actually ops.ooboffs is not defaulted so when its value gets
added to chip->oob_poi in nand_fill_oob or nand_transfer_oob
the respective memcpy is using a wrong address.

With this patch, both md -s /dev/nandraw0 and cp xyz /dev/nandraw0.sb
are working fine on an i.MX28 target (instead of crashing the board).

Signed-off-by: Eric Bénard <eric at eukrea.com>
---
 drivers/mtd/mtdraw.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/mtd/mtdraw.c b/drivers/mtd/mtdraw.c
index 384104e..c289e8d 100644
--- a/drivers/mtd/mtdraw.c
+++ b/drivers/mtd/mtdraw.c
@@ -98,6 +98,7 @@ static ssize_t mtdraw_read_unaligned(struct mtd_info *mtd, void *dst,
 	if (!tmp)
 		return -ENOMEM;
 	ops.mode = MTD_OOB_RAW;
+	ops.ooboffs = 0;
 	ops.datbuf = tmp;
 	ops.len = mtd->writesize;
 	ops.oobbuf = tmp + mtd->writesize;
@@ -152,6 +153,7 @@ static ssize_t mtdraw_blkwrite(struct mtd_info *mtd, const void *buf,
 	int ret;
 
 	ops.mode = MTD_OOB_RAW;
+	ops.ooboffs = 0;
 	ops.datbuf = (void *)buf;
 	ops.len = mtd->writesize;
 	ops.oobbuf = (void *)buf + mtd->writesize;
-- 
1.7.11.7