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conf: Refactor control flow in virDomainDiskBackingStoreParse

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The function does not have any code in the 'cleanup' label so we can
simplify the control flow.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Peter Krempa 2019-03-11 16:10:35 +01:00
parent 4885e9fdd9
commit 3145285a06
1 changed files with 11 additions and 17 deletions
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28
src/conf/domain_conf.c
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@ -9162,19 +9162,16 @@ virDomainDiskBackingStoreParse(xmlXPathContextPtr ctxt,
{
VIR_XPATH_NODE_AUTORESTORE(ctxt);
xmlNodePtr source;
int ret = -1;
VIR_AUTOUNREF(virStorageSourcePtr) backingStore = NULL;
VIR_AUTOFREE(char *) type = NULL;
VIR_AUTOFREE(char *) format = NULL;
VIR_AUTOFREE(char *) idx = NULL;
if (!(ctxt->node = virXPathNode("./backingStore", ctxt))) {
ret = 0;
goto cleanup;
}
if (!(ctxt->node = virXPathNode("./backingStore", ctxt)))
return 0;
if (!(backingStore = virStorageSourceNew()))
goto cleanup;
return -1;
/* backing store is always read-only */
backingStore->readonly = true;
@ -9182,52 +9179,49 @@ virDomainDiskBackingStoreParse(xmlXPathContextPtr ctxt,
/* terminator does not have a type */
if (!(type = virXMLPropString(ctxt->node, "type"))) {
VIR_STEAL_PTR(src->backingStore, backingStore);
ret = 0;
goto cleanup;
return 0;
}
if (!(flags & VIR_DOMAIN_DEF_PARSE_INACTIVE) &&
(idx = virXMLPropString(ctxt->node, "index")) &&
virStrToLong_uip(idx, NULL, 10, &backingStore->id) < 0) {
virReportError(VIR_ERR_XML_ERROR, _("invalid disk index '%s'"), idx);
goto cleanup;
return -1;
}
backingStore->type = virStorageTypeFromString(type);
if (backingStore->type <= 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unknown disk backing store type '%s'"), type);
goto cleanup;
return -1;
}
if (!(format = virXPathString("string(./format/@type)", ctxt))) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("missing disk backing store format"));
goto cleanup;
return -1;
}
backingStore->format = virStorageFileFormatTypeFromString(format);
if (backingStore->format <= 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unknown disk backing store format '%s'"), format);
goto cleanup;
return -1;
}
if (!(source = virXPathNode("./source", ctxt))) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("missing disk backing store source"));
goto cleanup;
return -1;
}
if (virDomainDiskSourceParse(source, ctxt, backingStore, flags, xmlopt) < 0 ||
virDomainDiskBackingStoreParse(ctxt, backingStore, flags, xmlopt) < 0)
goto cleanup;
return -1;
VIR_STEAL_PTR(src->backingStore, backingStore);
ret = 0;
cleanup:
return ret;
return 0;
}
#define PARSE_IOTUNE(val) \