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由 Andi Kleen 提交于
Without this patch a Opteron test system here oopses at boot with current git. Calling to_pci_dev() on a NULL pointer gives a negative value so the following NULL pointer check never triggers and then an illegal address is referenced. Check the unadjusted original device pointer for NULL instead. Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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