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| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2017-03-30 15:45:47 +0900 |
|---|---|---|
| committer | Boris Brezillon <boris.brezillon@free-electrons.com> | 2017-04-25 14:18:31 +0200 |
| commit | 07604686e808cd93d352172806a7828860f048f5 (patch) | |
| tree | cf462396e69f6c7a61dead633765e555deaf6de4 /drivers/mtd/nand/denali.c | |
| parent | f107d7a43923a83d837b3ea3c7b7de58cd014bbd (diff) | |
mtd: nand: relax ecc.read_page() return value for uncorrectable ECC
The comment for ecc.read_page() requires that it should return
"0 if bitflips uncorrectable".
Actually, drivers could return positive values when uncorrectable
bitflips occur. For example, nand_read_page_swecc() is the case.
If ecc.correct() returns -EBADMSG for the first ECC sector, and
a positive value for the second one, nand_read_page_swecc() returns
a positive max_bitflips and increments ecc_stats.failed for the same
page.
The requirement can be relaxed by tweaking nand_do_read_ops().
Move the max_bitflips calculation below the retry.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Suggested-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Diffstat (limited to 'drivers/mtd/nand/denali.c')
0 files changed, 0 insertions, 0 deletions