From 668300b1b877872a54079d0eb02b60d34d6464d6 Mon Sep 17 00:00:00 2001
From: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Date: Sun, 19 Jul 2009 14:33:14 +0300
Subject: [PATCH] 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>
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