tree 3b5ad03da140ce5568169d8bfe1dc34e311db508
parent b49bb7d4e6a390105e43fe6a464f0c868089a595
author Lu Baolu <baolu.lu@linux.intel.com> 1541384338 +0800
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1544689225 +0100

iommu/vt-d: Fix NULL pointer dereference in prq_event_thread()

[ Upstream commit 19ed3e2dd8549c1a34914e8dad01b64e7837645a ]

When handling page request without pasid event, go to "no_pasid"
branch instead of "bad_req". Otherwise, a NULL pointer deference
will happen there.

Cc: Ashok Raj <ashok.raj@intel.com>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: Sohil Mehta <sohil.mehta@intel.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Fixes: a222a7f0bb6c9 'iommu/vt-d: Implement page request handling'
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>