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Joerg Roedel authored
commit bea64033 upstream. It turns out that the disable_dmar_iommu() code-path tried to get the device_domain_lock recursivly, which will dead-lock when this code runs on dmar removal. Fix both code-paths that could lead to the dead-lock. Fixes: 55d94043 ('iommu/vt-d: Get rid of domain->iommu_lock') Signed-off-by:
Joerg Roedel <jroedel@suse.de> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
813617a4
