From: David Woodhouse Date: Fri, 3 Dec 2010 16:36:34 +0000 (+0000) Subject: mtd: nand: Fix integer overflow in ONFI detection of chips >= 4GiB X-Git-Tag: v2.6.38-rc1~21^2~25 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4ccb3b4497ce01fab4933704fe21581e30fda1a5;p=platform%2Fkernel%2Flinux-exynos.git mtd: nand: Fix integer overflow in ONFI detection of chips >= 4GiB Signed-off-by: David Woodhouse --- diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 75d199e..33550c4 100644 --- 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;