From: Bjorn Helgaas <bjorn.helgaas@hp.com>
Date: Tue, 26 Oct 2010 21:41:28 +0000 (-0600)
Subject: resources: handle overflow when aligning start of available area
X-Git-Tag: v2.6.37-rc1~62^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a1862e31079149a52b6223776228c3aee493d4a7;p=pandora-kernel.git

resources: handle overflow when aligning start of available area

If tmp.start is near ~0, ALIGN(tmp.start) may overflow, which would
make us think there's more available space than there really is.  We
would likely return something that conflicts with a previous resource,
which would cause a failure when allocate_resource() requests the newly-
allocated region.

Reference: https://bugzilla.redhat.com/show_bug.cgi?id=646027
Reported-by: Fabrice Bellet <fabrice@bellet.info>
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
---

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