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UBI: erase free PEB with bitflip in EC header

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commit 193819cf2e upstream.

Without this patch, these PEB are not scrubbed until we put data in them.
Bitflip can accumulate latter and we can loose the EC header (but VID header
should be intact and allow to recover data).

Signed-off-by: Matthieu Castet <matthieu.castet@parrot.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
[bwh: Backported to 3.2: adjust filename, context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: Qiang Huang <h.huangqiang@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Matthieu CASTET 2012-08-22 16:03:46 +02:00 committed by Greg Kroah-Hartman
parent 70e8fcb681
commit b2d9953713
1 changed files with 1 additions and 1 deletions
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2
drivers/mtd/ubi/scan.c
View file

@ -997,7 +997,7 @@ static int process_eb(struct ubi_device *ubi, struct ubi_scan_info *si,
return err;
goto adjust_mean_ec;
case UBI_IO_FF:
if (ec_err)
if (ec_err || bitflips)
err = add_to_list(si, pnum, ec, 1, &si->erase);
else
err = add_to_list(si, pnum, ec, 0, &si->free);