conf: Report errors on cputune parameter parsing

This patch adds proper error reporting if parsing of cputune parameters
fails due to incorrect values provided by the user. Previously no errors
were reported in such a case and the failure was silently ignored.

diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index dc1bd6e6eb0cb78422ee5c3b61edc4abdbdee761..f7c8af1eb3a1fc0d45c469d887db76628a473742 100644 (file)
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -9478,29 +9478,43 @@ virDomainDefParseXML(virCapsPtr caps,
 
     /* Extract cpu tunables. */
     if (virXPathULong("string(./cputune/shares[1])", ctxt,
-                      &def->cputune.shares) < 0)
-        def->cputune.shares = 0;
+                      &def->cputune.shares) < -1) {
+        virReportError(VIR_ERR_XML_ERROR, "%s",
+                       _("can't parse cputune shares value"));
+        goto error;
+    }
 
     if (virXPathULongLong("string(./cputune/period[1])", ctxt,
-                          &def->cputune.period) < 0)
-        def->cputune.period = 0;
+                          &def->cputune.period) < -1) {
+        virReportError(VIR_ERR_XML_ERROR, "%s",
+                       _("can't parse cputune period value"));
+        goto error;
+    }
 
     if (virXPathLongLong("string(./cputune/quota[1])", ctxt,
-                         &def->cputune.quota) < 0)
-        def->cputune.quota = 0;
+                         &def->cputune.quota) < -1) {
+        virReportError(VIR_ERR_XML_ERROR, "%s",
+                       _("can't parse cputune quota value"));
+        goto error;
+    }
 
     if (virXPathULongLong("string(./cputune/emulator_period[1])", ctxt,
-                          &def->cputune.emulator_period) < 0)
-        def->cputune.emulator_period = 0;
+                          &def->cputune.emulator_period) < -1) {
+        virReportError(VIR_ERR_XML_ERROR, "%s",
+                       _("can't parse cputune emulator period value"));
+        goto error;
+    }
 
     if (virXPathLongLong("string(./cputune/emulator_quota[1])", ctxt,
-                         &def->cputune.emulator_quota) < 0)
-        def->cputune.emulator_quota = 0;
-
-    if ((n = virXPathNodeSet("./cputune/vcpupin", ctxt, &nodes)) < 0) {
+                         &def->cputune.emulator_quota) < -1) {
+        virReportError(VIR_ERR_XML_ERROR, "%s",
+                       _("can't parse cputune emulator quota value"));
         goto error;
     }
 
+    if ((n = virXPathNodeSet("./cputune/vcpupin", ctxt, &nodes)) < 0)
+        goto error;
+
     if (n && VIR_ALLOC_N(def->cputune.vcpupin, n) < 0)
         goto no_memory;