suspend-vs-iommu: prevent suspend if we could not resume

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iommu/gart support misses suspend/resume code, which can do bad stuff,
including memory corruption on resume.  Prevent system suspend in case we
would be unable to resume.

Signed-off-by: Pavel Machek <pavel@suse.cz>
Tested-by: Patrick <ragamuffin@datacomm.ch>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

...

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Pavel Machek 2008-05-29 00:30:21 -07:00 • committed by Thomas Gleixner

parent be524fb960

commit cd76374e9d

1 changed files with 30 additions and 1 deletions

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arch/x86/kernel/pci-gart_64.c

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