mtd: pxa3xx_nand: Fix blank page ECC mismatch
This bug was introduced in
f8155a40 ("mtd: pxa3xx_nand: rework irq
logic") and causes the PXA3xx NAND controller fail to operate with NAND
flash that has empty pages. According to the comment in this block, the
hardware controller will report a double-bit error for empty pages,
which can and must be ignored.
This patch restores the original behaviour of the driver.
Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Lei Wen <leiwen@marvell.com>
Cc: Haojian Zhuang <haojian.zhuang@marvell.com>
Cc: David Woodhouse <David.Woodhouse@intel.com>
Cc: stable@kernel.org [2.6.38+]
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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