[libvirt PATCH] virsh: fix event registration for single event

[Ján Tomko]

Allocate a larger 'data' array than strictly needed
for simplicity and use 'ndata' as the index when
filling it to put the single event at the first unused
place, instead of at its index in the virshDomainEventCallbacks
array.

https://bugzilla.redhat.com/show_bug.cgi?id=2073887

Fixes: c6bb2746933bbe65877a5f8a8d60e100b0bf8a59
Signed-off-by: Ján Tomko <jtomko at redhat.com>
---
 tools/virsh-domain-event.c | 19 ++++++++-----------
 1 file changed, 8 insertions(+), 11 deletions(-)

diff --git a/tools/virsh-domain-event.c b/tools/virsh-domain-event.c
index 1a2f1cb6e0..6dbb64a655 100644
--- a/tools/virsh-domain-event.c
+++ b/tools/virsh-domain-event.c
@@ -915,23 +915,20 @@ cmdEvent(vshControl *ctl, const vshCmd *cmd)
         return false;
     }
 
-    if (eventName)
-        data = g_new0(virshDomEventData, 1);
-    else
-        data = g_new0(virshDomEventData, G_N_ELEMENTS(virshDomainEventCallbacks));
+    data = g_new0(virshDomEventData, G_N_ELEMENTS(virshDomainEventCallbacks));
 
     for (i = 0; i < G_N_ELEMENTS(virshDomainEventCallbacks); i++) {
         if (eventName &&
             STRNEQ(eventName, virshDomainEventCallbacks[i].name))
             continue;
 
-        data[i].event = i;
-        data[i].ctl = ctl;
-        data[i].loop = loop;
-        data[i].count = &count;
-        data[i].timestamp = timestamp;
-        data[i].cb = &virshDomainEventCallbacks[i];
-        data[i].id = -1;
+        data[ndata].event = i;
+        data[ndata].ctl = ctl;
+        data[ndata].loop = loop;
+        data[ndata].count = &count;
+        data[ndata].timestamp = timestamp;
+        data[ndata].cb = &virshDomainEventCallbacks[i];
+        data[ndata].id = -1;
         ndata++;
     }
 
-- 
2.35.1