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authorBjorn Helgaas <bjorn.helgaas@hp.com>2010-10-26 23:41:28 +0200
committerJesse Barnes <jbarnes@virtuousgeek.org>2010-10-27 00:33:28 +0200
commita1862e31079149a52b6223776228c3aee493d4a7 (patch)
treef70f7e3f33f63dcf77428b745f0dd01ecbee8e24 /Documentation
parentresources: ensure callback doesn't allocate outside available space (diff)
downloadlinux-a1862e31079149a52b6223776228c3aee493d4a7.tar.xz
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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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