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mtd: nand: Fix integer overflow in ONFI detection of chips >= 4GiB
author
David Woodhouse
<David.Woodhouse@intel.com>
Fri, 3 Dec 2010 16:36:34 +0000
(16:36 +0000)
committer
David Woodhouse
<David.Woodhouse@intel.com>
Fri, 3 Dec 2010 16:36:54 +0000
(16:36 +0000)
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
drivers/mtd/nand/nand_base.c
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diff --git
a/drivers/mtd/nand/nand_base.c
b/drivers/mtd/nand/nand_base.c
index
75d199e
..
33550c4
100644
(file)
--- a/
drivers/mtd/nand/nand_base.c
+++ b/
drivers/mtd/nand/nand_base.c
@@
-2894,7
+2894,7
@@
static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip,
mtd->writesize = le32_to_cpu(p->byte_per_page);
mtd->erasesize = le32_to_cpu(p->pages_per_block) * mtd->writesize;
mtd->oobsize = le16_to_cpu(p->spare_bytes_per_page);
- chip->chipsize = le32_to_cpu(p->blocks_per_lun) * mtd->erasesize;
+ chip->chipsize =
(uint64_t)
le32_to_cpu(p->blocks_per_lun) * mtd->erasesize;
busw = 0;
if (le16_to_cpu(p->features) & 1)
busw = NAND_BUSWIDTH_16;