From 310051c8478d52e060dcd9c4ae0b5ce954ee9fdb Mon Sep 17 00:00:00 2001
From: John Ferlan <jferlan@redhat.com>
Date: Wed, 6 Jun 2018 20:21:25 -0400
Subject: [PATCH] qemu: Fix error for attach controller config for live guest
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Fix the error message to indicate what exactly is failing - that
the controller index provided matches an existing controller.

Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
---
 src/qemu/qemu_driver.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 28769878cc..fbf1c06226 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -8040,8 +8040,9 @@ qemuDomainAttachDeviceConfig(virDomainDefPtr vmdef,
         if (controller->idx != -1 &&
             virDomainControllerFind(vmdef, controller->type,
                                     controller->idx) >= 0) {
-            virReportError(VIR_ERR_OPERATION_INVALID, "%s",
-                           _("Target already exists"));
+            virReportError(VIR_ERR_OPERATION_INVALID,
+                           _("controller index='%d' already exists"),
+                           controller->idx);
             return -1;
         }
 
-- 
2.47.2