From: Richard Weinberger <richard@nod.at>
Date: Tue, 8 Jul 2014 14:04:44 +0000 (+0200)
Subject: UBI: init_volumes: Ignore volumes with no LEBs
X-Git-Tag: cleanup-for-v3.18~45^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e8c235b065ec07cd1c63c0e0bfbfc718d438baba;p=pandora-kernel.git

UBI: init_volumes: Ignore volumes with no LEBs

UBI assumes that ubi_attach_info will only contain ubi_ainf_volume
structures for volumes with at least one LEB.
In scanning mode this is true because UBI can nicely create a ubi_ainf_volume
on demand while creating the EBA table.

For fastmap this is not true, the fastmap on-flash structure has a list of
all volumes, the ubi_ainf_volume structures are created from this list.
So it can happen that an empty volume ends up in init_volumes().

We can easely deal with that by looking into ->leb_count too.

Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
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