iommu/vt-d: Use BUG_ON instead of if () BUG()

Found by a coccicheck script.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Joerg Roedel 2015-08-13 11:15:13 +02:00
commit dc02e46e8d