From: Roger Pau Monne <roger.pau@citrix.com>
Date: Mon, 18 Mar 2013 16:49:33 +0000 (+0100)
Subject: xen-blkback: fix foreach_grant_safe to handle empty lists
X-Git-Tag: v3.9-rc5~3^2~9^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=217fd5e709f029c125a9d39de5f13387407f131a;p=pandora-kernel.git

xen-blkback: fix foreach_grant_safe to handle empty lists

We may use foreach_grant_safe in the future with empty lists, so make
sure we can handle them.

Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Cc: xen-devel@lists.xen.org
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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