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| author | Paolo Bonzini <pbonzini@redhat.com> | 2013-10-15 16:47:16 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2013-12-09 21:46:48 +0100 |
| commit | 0b81c1ef5c677c2a07be5f8bf0dfe2c62ef52115 (patch) | |
| tree | d40bad794a58e7caf4fe8b149ab3d6a0812006fc | |
| parent | 7dc65c02fe3fb8f3146ce0b9ff5fec5945329f0e (diff) | |
| download | focaccia-qemu-0b81c1ef5c677c2a07be5f8bf0dfe2c62ef52115.tar.gz focaccia-qemu-0b81c1ef5c677c2a07be5f8bf0dfe2c62ef52115.zip | |
virtio-ccw: move virtio_ccw_stop_ioeventfd to virtio_ccw_busdev_unplug
Similar to the PCI bug that prompted these patches, virtio-ccw will segfault after the reworking of hotplug/hot-unplug. Prepare for this by moving virtio_ccw_stop_ioeventfd to before the freeing of the proxy device. A better place for this could be the device_unplugged callback for the virtio-ccw bus. However, we do not yet have a callback that works: this patch avoids the problem while leaving the tree bisectable. Cc: qemu-stable@nongnu.org Reported-by: Cornelia Huck <cornelia.huck@de.ibm.com> Suggested-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Acked-by: Andreas Faerber <afaerber@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | hw/s390x/virtio-ccw.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/hw/s390x/virtio-ccw.c b/hw/s390x/virtio-ccw.c index f93a81c7cd..e8b4547409 100644 --- a/hw/s390x/virtio-ccw.c +++ b/hw/s390x/virtio-ccw.c @@ -631,7 +631,6 @@ static int virtio_ccw_exit(VirtioCcwDevice *dev) { SubchDev *sch = dev->sch; - virtio_ccw_stop_ioeventfd(dev); if (sch) { css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL); g_free(sch); @@ -1228,6 +1227,8 @@ static int virtio_ccw_busdev_unplug(DeviceState *dev) VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev; SubchDev *sch = _dev->sch; + virtio_ccw_stop_ioeventfd(_dev); + /* * We should arrive here only for device_del, since we don't support * direct hot(un)plug of channels, but only through virtio. |