tree 9bca90ac072a68eb762f985d62c512c55ba6dadc
parent 5b289b562f6d236108569a880cb38cc03d17a50d
author Artem Bityutskiy <Artem.Bityutskiy@nokia.com> 1248003194 +0300
committer Artem Bityutskiy <Artem.Bityutskiy@nokia.com> 1250269296 +0300

UBI: print a warning if too many PEBs are corrupted

There was a bug report recently where UBI prints:

UBI error: ubi_attach_mtd_dev: failed to attach by scanning, error -22

error messages and refuses to attach a PEB. It turned out to be a
buggy flash driver which returned garbage to almost every UBI read.
This patch makes UBI print a better message in such cases. Namely,
if UBI finds 8 or more corrupted PEBs, it prints a warning and
lists the corrupted PEBs.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>