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mtd: edit NAND-related comment 

This comment was unclear regarding which NAND functions do and do not
support ECC on the spare area. This update should reflect the current
status of the NAND system but can be updated if changes are made in
the standard functions.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <dedekind1@gmail.com>
This commit is contained in:
Brian Norris 2011-06-28 16:29:00 -07:00 committed by Artem Bityutskiy
parent 003bc47922
commit c478d7e449
1 changed files with 3 additions and 2 deletions
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5
drivers/mtd/mtdchar.c
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@ -482,8 +482,9 @@ static int mtd_do_readoob(struct mtd_info *mtd, uint64_t start,
* to signal the caller that a bitflip has occured and has
* been corrected by the ECC algorithm.
*
* Note: most NAND ECC algorithms do not calculate ECC
* for the OOB area.
* Note: currently the standard NAND function, nand_read_oob_std,
* does not calculate ECC for the OOB area, so do not rely on
* this behavior unless you have replaced it with your own.
*/
if (ret == -EUCLEAN || ret == -EBADMSG)
return 0;