[libvirt] [PATCH 3/4] qemu_hotplug: Check for duplicate drive addresses

[Michal Privoznik]

This tries to fix the same problem as f1d65853000 but it's doing
so in a less invasive way.

Signed-off-by: Michal Privoznik <mprivozn at redhat.com>
---
 src/qemu/qemu_hotplug.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c
index ef14b1977c..5b6afe5c2b 100644
--- a/src/qemu/qemu_hotplug.c
+++ b/src/qemu/qemu_hotplug.c
@@ -1183,6 +1183,12 @@ qemuDomainAttachSCSIDisk(virQEMUDriverPtr driver,
         return -1;
     }
 
+    if (virDomainSCSIDriveAddressIsUsed(vm->def, &disk->info.addr.drive)) {
+        virReportError(VIR_ERR_OPERATION_INVALID, "%s",
+                       _("Domain already contains a disk with that address"));
+        return -1;
+    }
+
     /* Let's make sure the disk has a controller defined and loaded before
      * trying to add it. The controller used by the disk must exist before a
      * qemu command line string is generated.
-- 
2.21.0