NAND: Correct the "chip_shift" calculation

This patch updates the "chip_shift" calculation in the
NAND driver. This is being done to sync up the NAND driver with
the kernel NAND driver.

Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 30a3e9e742959c8c079b4a56834d984246de5ae6..d5c53fed1b9e987d6e4ec9c35ba67d92d0618888 100644 (file)
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -2628,7 +2628,7 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
        chip->bbt_erase_shift = chip->phys_erase_shift =
                ffs(mtd->erasesize) - 1;
        if (chip->chipsize & 0xffffffff)
-               chip->chip_shift = ffs(chip->chipsize) - 1;
+               chip->chip_shift = ffs((unsigned)chip->chipsize) - 1;
        else
                chip->chip_shift = ffs((unsigned)(chip->chipsize >> 32)) + 31;