qemu/hw/pci
Alexey Kardashevskiy 193982c6f9 pci: Only unmap bus_master_enabled_region if was added previously
Normally pci_init_bus_master() would be called either via
bus->machine_done.notify or directly from do_pci_register_device().

However if a device's realize() failed, pci_init_bus_master() is not
called, and do_pci_unregister_device() fails on
memory_region_del_subregion() as it was not mapped.

This adds a check that subregion was mapped before unmapping it.

Fixes: c53598ed18 ("pci: Add missing drop of bus master AS reference")
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Tested-by: John Snow <jsnow@redhat.com>
2017-04-04 18:32:25 +03:00
..
Makefile.objs
msi.c pci: Convert msi_init() to Error and fix callers to check it 2016-07-05 13:14:41 +03:00
msix.c pci: Convert msix_init() to Error and fix callers 2017-02-01 03:37:18 +02:00
pci_bridge.c Fix some typos found by codespell 2016-05-18 15:04:27 +03:00
pci_host.c
pci-stub.c
pci.c pci: Only unmap bus_master_enabled_region if was added previously 2017-04-04 18:32:25 +03:00
pcie_aer.c Don't check qobject_type() before qobject_to_qdict() 2017-02-22 19:52:01 +01:00
pcie_host.c
pcie_port.c
pcie.c hw/virtio: fix Link Control Register for PCI Express virtio devices 2017-03-16 01:46:41 +02:00
shpc.c migration: extend VMStateInfo 2017-01-24 17:54:47 +00:00
slotid_cap.c
trace-events trace-events: fix first line comment in trace-events 2016-08-12 10:36:01 +01:00