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[MTD] [NAND] Casting bug in nand_default_block_markbad

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There is a slight bug in nand_default_block_markbad, where the offset is
cast to an integer, prior to being shifted. This means that on large
offsets, it is incorrectly doing a signed shift & losing bits. Fixed
this by doing the cast after the shift (as is done elsewhere in the code).

Signed-off-by: Andre Renaud <andre@bluewatersys.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
This commit is contained in:
Andre Renaud 2007-04-17 13:50:59 -04:00 committed by David Woodhouse
parent 340ea370c2
commit 4226b51037
1 changed files with 1 additions and 1 deletions
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drivers/mtd/nand/nand_base.c
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@ -350,7 +350,7 @@ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
int block, ret;
/* Get block number */
block = ((int)ofs) >> chip->bbt_erase_shift;
block = (int)(ofs >> chip->bbt_erase_shift);
if (chip->bbt)
chip->bbt[block >> 2] |= 0x01 << ((block & 0x03) << 1);