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| author | Alexey Kardashevskiy | 2017-03-31 06:47:11 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin | 2017-04-04 17:32:25 +0200 |
| commit | 193982c6f9424779b53a168fe32ebc30a776cbf1 (patch) | |
| tree | 78d3f3f3cd8bff50a01c3052e45ec5b61b117efe /block/commit.c | |
| parent | Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging (diff) | |
| download | qemu-193982c6f9424779b53a168fe32ebc30a776cbf1.tar.gz qemu-193982c6f9424779b53a168fe32ebc30a776cbf1.tar.xz qemu-193982c6f9424779b53a168fe32ebc30a776cbf1.zip | |
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: c53598ed18e4 ("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>
Diffstat (limited to 'block/commit.c')
0 files changed, 0 insertions, 0 deletions