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virDomainIothreadMappingDefParse: Fix usage of virXMLNodeGetSubelementList

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virXMLNodeGetSubelementList always returns a non-NULL pointers thus we
should check the length instead.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Peter Krempa 2025-02-25 12:42:49 +01:00
parent fcd47086f4
commit 0ee6848ca5
1 changed files with 5 additions and 3 deletions
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8
src/conf/domain_conf.c
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@ -7970,19 +7970,21 @@ virDomainIothreadMappingDefParse(xmlNodePtr driverNode,
if (!(iothreadsNode = virXMLNodeGetSubelement(driverNode, "iothreads")))
return 0;
if (!(iothreadNodes = virXMLNodeGetSubelementList(iothreadsNode, "iothread")))
iothreadNodes = virXMLNodeGetSubelementList(iothreadsNode, "iothread");
if (iothreadNodes->len == 0)
return 0;
for (i = 0; i < iothreadNodes->len; i++) {
xmlNodePtr iothNode = g_ptr_array_index(iothreadNodes, i);
g_autoptr(virDomainIothreadMappingDef) iothdef = g_new0(virDomainIothreadMappingDef, 1);
g_autoptr(GPtrArray) queueNodes = NULL;
g_autoptr(GPtrArray) queueNodes = virXMLNodeGetSubelementList(iothNode, "queue");
if (virXMLPropUInt(iothNode, "id", 10, VIR_XML_PROP_REQUIRED,
&iothdef->id) < 0)
return -1;
if ((queueNodes = virXMLNodeGetSubelementList(iothNode, "queue"))) {
if (queueNodes->len > 0) {
size_t q;
iothdef->queues = g_new0(unsigned int, queueNodes->len);