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authorDavid Brownell <dbrownell@users.sourceforge.net>2009-04-21 22:51:20 -0400
committerDavid Woodhouse <David.Woodhouse@intel.com>2009-06-05 12:39:09 -0400
commit81d19b04a865f9fcc0ca01b20be806169ff9efb3 (patch)
tree1d0a17203cf483b29ca45b0a35703f45198f18c2 /drivers/mtd
parent24430abc88c67e3df2f06c96a6ccd73bda4c92f0 (diff)
mtd: nand: don't walk past end of oobfree[]
Resolve issue noted by Sneha: when computing oobavail from the list of free areas in the OOB, don't assume there will always be an unused slot at the end. With ECC_HW_SYNDROME and 4KiB page chips, it's fairly likely there *won't* be one. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: "Narnakaje, Snehaprabha" <nsnehaprabha@ti.com>" Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/nand/nand_base.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 3d7ed432fa41..8c21b89d2d0c 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -2756,7 +2756,8 @@ int nand_scan_tail(struct mtd_info *mtd)
2756 * the out of band area 2756 * the out of band area
2757 */ 2757 */
2758 chip->ecc.layout->oobavail = 0; 2758 chip->ecc.layout->oobavail = 0;
2759 for (i = 0; chip->ecc.layout->oobfree[i].length; i++) 2759 for (i = 0; chip->ecc.layout->oobfree[i].length
2760 && i < ARRAY_SIZE(chip->ecc.layout->oobfree); i++)
2760 chip->ecc.layout->oobavail += 2761 chip->ecc.layout->oobavail +=
2761 chip->ecc.layout->oobfree[i].length; 2762 chip->ecc.layout->oobfree[i].length;
2762 mtd->oobavail = chip->ecc.layout->oobavail; 2763 mtd->oobavail = chip->ecc.layout->oobavail;