LXC: throw an error if we failed to get Idmap elements

Throwing an error is much friendly than just
"error: An error occurred, but the cause is unknown"

Signed-off-by: Chen Hanxiao <chenhanxiao@cn.fujitsu.com>

diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index b7aa4f5171a190944ec6a1bef6acb477c73883bb..fa64dc1707ea6c93260d0e4c8fcbbff465f9224e 100644 (file)
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -10983,6 +10983,8 @@ virDomainIdmapDefParseXML(xmlXPathContextPtr ctxt,
         if (virXPathUInt("string(./@start)", ctxt, &idmap[i].start) < 0 ||
             virXPathUInt("string(./@target)", ctxt, &idmap[i].target) < 0 ||
             virXPathUInt("string(./@count)", ctxt, &idmap[i].count) < 0) {
+            virReportError(VIR_ERR_XML_ERROR, "%s",
+                           _("invalid idmap start/target/count settings"));
             VIR_FREE(idmap);
             goto cleanup;
         }