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Commit bb38eefb authored by Pekon Gupta's avatar Pekon Gupta Committed by Brian Norris
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mtd: nand: omap: fix ecclayout->oobfree->length 



This patch excludes reserved-marker byte-position from oobfree->length
calculation. Thus all bytes from oobfree->offset till end of OOB are free.

CC: <stable@vger.kernel.org> # 3.13.x+
Signed-off-by: default avatarPekon Gupta <pekon@ti.com>
Signed-off-by: default avatarBrian Norris <computersforpeace@gmail.com>
parent aa6092f9

drivers/mtd/nand/omap2.c

+2 −3
Original line number Diff line number Diff line
@@ -1994,9 +1994,8 @@ static int omap_nand_probe(struct platform_device *pdev) 
		goto return_error;

	}



	/* populate remaining ECC layout data */

	ecclayout->oobfree->length = mtd->oobsize - (BADBLOCK_MARKER_LENGTH +

							ecclayout->eccbytes);

	/* all OOB bytes from oobfree->offset till end off OOB are free */

	ecclayout->oobfree->length = mtd->oobsize - ecclayout->oobfree->offset;

	/* check if NAND device's OOB is enough to store ECC signatures */

	if (mtd->oobsize < (ecclayout->eccbytes + BADBLOCK_MARKER_LENGTH)) {

		pr_err("not enough OOB bytes required = %d, available=%d\n",