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Allocate priv->vioserialaddrs unconditionally

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When attempting to hotplug a virtio-serial console to a domain
that had no virtio-serial controllers (not even those that
are added by libvirt when some devices need them) at daemon startup,
report a user-friendly error:

error: Failed to attach device from console.xml
error: internal error: no virtio-serial controllers are available

instead of crashing the daemon:

Process terminating with default action of signal 11 (SIGSEGV): dumping core
 Access not within mapped region at address 0x8
   at 0x531028F: virDomainVirtioSerialAddrNext (domain_addr.c:916)
   by 0x531028F: virDomainVirtioSerialAddrAssign (domain_addr.c:1029)
   by 0x1CBF68: qemuDomainAttachChrDevice (qemu_hotplug.c:1565)
   by 0x1BCD5E: qemuDomainAttachDeviceLive (qemu_driver.c:7997)
   by 0x1BCD5E: qemuDomainAttachDeviceFlags (qemu_driver.c:8743)

Introduced in v1.2.14-30-g5903378.
This commit is contained in:
Ján Tomko 2015-05-29 15:03:24 +02:00
parent 5aa72904a7
commit 0a2581a110
1 changed files with 0 additions and 3 deletions
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3
src/qemu/qemu_command.c
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@ -1447,9 +1447,6 @@ qemuDomainAssignVirtioSerialAddresses(virDomainDefPtr def,
virDomainVirtioSerialAddrSetPtr addrs = NULL;
qemuDomainObjPrivatePtr priv = NULL;
if (virDomainControllerFindByType(def, VIR_DOMAIN_CONTROLLER_TYPE_VIRTIO_SERIAL) == -1)
return 0;
if (!(addrs = virDomainVirtioSerialAddrSetCreate()))
goto cleanup;