linux-kernel - Re: [PATCH] mtd cs553x_nand: Initialise ecc.strength before nand

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Message-ID: <CAN8TOE-10VYTOS8EbPWxs0HyhdeZBzxL_8gmJsMmXPO1ti_6bQ@mail.gmail.com>
Date:	Wed, 21 Nov 2012 20:08:55 -0800
From:	Brian Norris <computersforpeace@...il.com>
To:	Nathan Williams <nathan@...verse.com.au>
Cc:	"linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Mike Dunn <mikedunn@...sguy.com>,
	Artem Bityutskiy <dedekind1@...il.com>
Subject: Re: [PATCH] mtd cs553x_nand: Initialise ecc.strength before nand_scan()

On Wed, Nov 21, 2012 at 3:42 PM, Nathan Williams <nathan@...verse.com.au> wrote:
> Loading cs553x_nand with Hynix H27U1G8F2BTR NAND flash causes this bug:
>
> kernel BUG at drivers/mtd/nand/nand_base.c:3345!
...
> Initialising ecc.strength before the call to nand_scan() fixes this.

Acked-by: Brian Norris <computersforpeace@...il.com>

BTW, I made a quick read through of the other NAND drivers to look for
similar errors. I think this is the only one where the only
ecc.strenght initialization occurred after the nand_scan() or
nand_scan_tail() call.

Thanks,
Brian
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