@@ -720,10 +720,12 @@ static void free_assigned_device(AssignedDevice *dev)
continue;
}
if (pci_region->type & IORESOURCE_IO) {
- memory_region_del_subregion(®ion->container,
- ®ion->real_iomem);
- memory_region_destroy(®ion->real_iomem);
- memory_region_destroy(®ion->container);
+ if (region->u.r_baseport) {
+ memory_region_del_subregion(®ion->container,
+ ®ion->real_iomem);
+ memory_region_destroy(®ion->real_iomem);
+ memory_region_destroy(®ion->container);
+ }
} else if (pci_region->type & IORESOURCE_MEM) {
if (region->u.r_virtbase) {
memory_region_del_subregion(®ion->container,
If we fail before or inside assigned_dev_register_regions, we so far unconditionally unregistered IO resources, triggering an assertion in the memory layer. Non-null u.r_baseport tells us if the region has been registered. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> --- hw/device-assignment.c | 10 ++++++---- 1 files changed, 6 insertions(+), 4 deletions(-)