Commit 998cf640 authored by Thomas Gleixner's avatar Thomas Gleixner Committed by Thomas Gleixner
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[MTD] NAND: Fix oob available calculation 



Use oobfree to calculate the number of oob bytes available for fs usage

Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent 963a6fb0

drivers/mtd/nand/nand_base.c

+4 −7
Original line number Diff line number Diff line
@@ -59,7 +59,7 @@ 
 *	The AG-AND chips have nice features for speed improvement,

 *	which are not supported yet. Read / program 4 pages in one go.

 *

 * $Id: nand_base.c,v 1.137 2005/03/24 14:33:22 dedekind Exp $

 * $Id: nand_base.c,v 1.138 2005/04/01 07:21:44 gleixner Exp $

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as
@@ -2512,12 +2512,9 @@ int nand_scan (struct mtd_info *mtd, int maxchips) 
	

	/* The number of bytes available for the filesystem to place fs dependend

	 * oob data */

	if (this->options & NAND_BUSWIDTH_16) {

		mtd->oobavail = mtd->oobsize - (this->autooob->eccbytes + 2);

		if (this->autooob->eccbytes & 0x01)

			mtd->oobavail--;

	} else

		mtd->oobavail = mtd->oobsize - (this->autooob->eccbytes + 1);

	mtd->oobavail = 0;

	for (i = 0; this->autooob->oobfree[i][1]; i++)

		mtd->oobavail += this->autooob->oobfree[i][1];



	/* 

	 * check ECC mode, default to software