From: Michal Privoznik <mprivozn@redhat.com>
Date: Thu, 26 Jan 2023 10:56:10 +0000 (+0100)
Subject: qemu_domain: Don't unref NULL hash table in qemuDomainRefreshStatsSchema()
X-Git-Tag: v9.1.0-rc1~160
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c3afde9211b550d3900edc5386ab121f5b39fd3e;p=thirdparty%2Flibvirt.git

qemu_domain: Don't unref NULL hash table in qemuDomainRefreshStatsSchema()

The g_hash_table_unref() function does not accept NULL. Passing
NULL results in a glib warning being triggered. Check whether the
hash table is not NULL and unref it only then.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
---

diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index b6ad118f1f..881c88d54c 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -11923,7 +11923,8 @@ qemuDomainRefreshStatsSchema(virDomainObj *dom)
     if (!schema)
         return -1;
 
-    g_hash_table_unref(priv->statsSchema);
+    if (priv->statsSchema)
+        g_hash_table_unref(priv->statsSchema);
     priv->statsSchema = schema;
 
     return 0;