From: Shmulik Ladkani <shmulik.ladkani@gmail.com>
Date: Sun, 10 Jun 2012 10:58:12 +0000 (+0300)
Subject: mtd: nand: Use the mirror BBT descriptor when reading its version
X-Git-Tag: v3.0.46~3
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=ad9ca19aefe3f7b593ecae8255b7cf7207e32b95;p=karo-tx-linux.git

mtd: nand: Use the mirror BBT descriptor when reading its version

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@gmail.com>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c
index cc81cd67f873..c27ca6affa97 100644
--- a/drivers/mtd/nand/nand_bbt.c
+++ b/drivers/mtd/nand/nand_bbt.c
@@ -429,7 +429,7 @@ static int read_abs_bbts(struct mtd_info *mtd, uint8_t *buf,
 	/* 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)];
 		printk(KERN_DEBUG "Bad block table at page %d, version 0x%02X\n",
 		       md->pages[0], md->version[0]);