[PATCH 1/2] qemu: Fix error for attach controller config for live guest

[John Ferlan <jferlan@xxxxxxxxxx>]

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@xxxxxxxxxx>
---
 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 38ea865ce3..50a7de4598 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -8039,8 +8039,9 @@ 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;
         }
 
-- 
2.14.4

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