[libvirt] [PATCH v3 4/7] hotplug: Check for alias in hostdev detach

[John Ferlan]

If the QEMU_CAPS_DEVICE is set, then ensure the host device alias has
been properly set before making the calls to detach the device

Signed-off-by: John Ferlan <jferlan at redhat.com>
---
 src/qemu/qemu_hotplug.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c
index 3e8cdbf..db39948 100644
--- a/src/qemu/qemu_hotplug.c
+++ b/src/qemu/qemu_hotplug.c
@@ -3371,8 +3371,15 @@ qemuDomainDetachThisHostDevice(virQEMUDriverPtr driver,
                                virDomainObjPtr vm,
                                virDomainHostdevDefPtr detach)
 {
+    qemuDomainObjPrivatePtr priv = vm->privateData;
     int ret = -1;
 
+    if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DEVICE) &&
+        !detach->info->alias) {
+        if (qemuAssignDeviceHostdevAlias(vm->def, detach, -1) < 0)
+            return -1;
+    }
+
     switch (detach->source.subsys.type) {
     case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI:
         ret = qemuDomainDetachHostPCIDevice(driver, vm, detach);
-- 
1.9.3