Re: [PATCH v3 3/9] mtd: rawnand: onfi: Fix redundancy detection check

[Miquel Raynal <miquel.raynal@xxxxxxxxxxx>]

On Tue, 2020-04-28 at 09:42:56 UTC, Miquel Raynal wrote:
> During ONFI detection, the CRC derived from the parameter page and the
> CRC supposed to be at the end of the parameter page are compared. If
> they do not match, the second then the third copies of the page are
> tried.
> 
> The current implementation compares the newly derived CRC with the CRC
> contained in the first page only. So if this particular CRC area has
> been corrupted, then the detection will fail for a wrong reason.
> 
> Fix this issue by checking the derived CRC against the right one.
> 
> Fixes: 39138c1f4a31 ("mtd: rawnand: use bit-wise majority to recover the ONFI param page")
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
> Reviewed-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxx>

Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next.

Miquel

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