We were freeing the iommu_table and leaking the bitmap pages. Also
rename it to calgary_free_bus, which is more accurate.
Signed-off-by: NMuli Ben-Yehuda <muli@il.ibm.com>
Signed-off-by: NJon Mason <jdmason@us.ibm.com>
Signed-off-by: NAndi Kleen <ak@suse.de>