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| author | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2010-10-31 18:55:30 +0200 |
|---|---|---|
| committer | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2011-02-06 19:35:26 +0200 |
| commit | a87f29cbbcbd5bd1e4990367cd18967e9bbeacff (patch) | |
| tree | 637789d9f982c7b92d4ee0aafcb1a3060e35a628 | |
| parent | fef2deb31f6523203a3fa1af485a5f1fef19cf6b (diff) | |
| download | blackbird-op-linux-a87f29cbbcbd5bd1e4990367cd18967e9bbeacff.tar.gz blackbird-op-linux-a87f29cbbcbd5bd1e4990367cd18967e9bbeacff.zip | |
UBI: always re-read in case of read failures
When the read operation fails, UBI tries to re-read several times in
a hope that one of the subsequent reads may succeed. However, currently
UBI re-reads only if MTD failed to read all data, but does not re-reads
if all the data were read, but with an integrity error (-EBADMSB). This
patch makes UBI to always re-try reading.
This should be useful for reading NAND pages with unstable bits -
re-reading may help to get correct data.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| -rw-r--r-- | drivers/mtd/ubi/io.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mtd/ubi/io.c b/drivers/mtd/ubi/io.c index 6f90a6530149..889e25c49323 100644 --- a/drivers/mtd/ubi/io.c +++ b/drivers/mtd/ubi/io.c @@ -188,7 +188,7 @@ retry: return UBI_IO_BITFLIPS; } - if (read != len && retries++ < UBI_IO_RETRIES) { + if (retries++ < UBI_IO_RETRIES) { dbg_io("error %d%s while reading %d bytes from PEB %d:%d," " read only %zd bytes, retry", err, errstr, len, pnum, offset, read); |
