linux-kernel - [ 111/120] mtd: nand: Use the mirror BBT descriptor when reading its version

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Message-Id: <20121011005847.752897040@linuxfoundation.org>
Date:	Thu, 11 Oct 2012 10:01:03 +0900
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	alan@...rguk.ukuu.org.uk,
	Shmulik Ladkani <shmulik.ladkani@...il.com>,
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	Artem Bityutskiy <artem.bityutskiy@...ux.intel.com>,
	David Woodhouse <David.Woodhouse@...el.com>
Subject: [ 111/120] mtd: nand: Use the mirror BBT descriptor when reading its version

3.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Shmulik Ladkani <shmulik.ladkani@...il.com>

commit 7bb9c75436212813b38700c34df4bbb6eb82debe upstream.

The code responsible for reading the version of the mirror bbt was
incorrectly using the descriptor of the main bbt.

Pass the mirror bbt descriptor to 'scan_read_raw' when reading the
version of the mirror bbt.

Signed-off-by: Shmulik Ladkani <shmulik.ladkani@...il.com>
Acked-by: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@...ux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@...el.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/mtd/nand/nand_bbt.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/mtd/nand/nand_bbt.c
+++ b/drivers/mtd/nand/nand_bbt.c
@@ -390,7 +390,7 @@ static int read_abs_bbts(struct mtd_info
 	/* Read the mirror version, if available */
 	if (md && (md->options & NAND_BBT_VERSION)) {
 		scan_read_raw(mtd, buf, (loff_t)md->pages[0] << this->page_shift,
-			      mtd->writesize, td);
+			      mtd->writesize, md);
 		md->version[0] = buf[bbt_get_ver_offs(mtd, md)];
 		pr_info("Bad block table at page %d, version 0x%02X\n",
 			 md->pages[0], md->version[0]);


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