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[libvirt] [PATCH 2/2] Display nicer error message for unsupported chardev hotplug



Use the device type name if we know it instead of its number,
even if we can't hotplug it:
qemuMonitorJSONAttachCharDevCommand:6094 : operation failed: Unsupported
char device type '10'
---
 src/qemu/qemu_monitor_json.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c
index 7870664..2d082bc 100644
--- a/src/qemu/qemu_monitor_json.c
+++ b/src/qemu/qemu_monitor_json.c
@@ -5915,9 +5915,15 @@ qemuMonitorJSONAttachCharDevCommand(const char *chrID,
     case VIR_DOMAIN_CHR_TYPE_STDIO:
     case VIR_DOMAIN_CHR_TYPE_NMDM:
     case VIR_DOMAIN_CHR_TYPE_LAST:
-        virReportError(VIR_ERR_OPERATION_FAILED,
-                       _("Unsupported char device type '%d'"),
-                       chr->type);
+        if (virDomainChrTypeToString(chr->type)) {
+            virReportError(VIR_ERR_OPERATION_FAILED,
+                           _("Hotplug unsupported char device type '%s'"),
+                           virDomainChrTypeToString(chr->type));
+        } else {
+            virReportError(VIR_ERR_OPERATION_FAILED,
+                           _("Unsupported char device type '%d'"),
+                           chr->type);
+        }
         goto error;
     }
 
-- 
2.0.4


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