Use g_autoptr() for virNWFilterDef and virNWFilterRuleDef and remove
unnecessary label.

Signed-off-by: Jiang Jiacheng <jiangjiach...@huawei.com>
---
 src/conf/nwfilter_conf.c       | 44 ++++++++++++++--------------------
 src/conf/virnwfilterobj.c      | 19 +++++++--------
 src/nwfilter/nwfilter_driver.c |  7 +++---
 tests/nwfilterxml2xmltest.c    | 22 +++++++----------
 4 files changed, 37 insertions(+), 55 deletions(-)

diff --git a/src/conf/nwfilter_conf.c b/src/conf/nwfilter_conf.c
index e5ea45b0b7..c948daa72a 100644
--- a/src/conf/nwfilter_conf.c
+++ b/src/conf/nwfilter_conf.c
@@ -2384,7 +2384,7 @@ virNWFilterRuleParse(xmlNodePtr node)
     int priority;
 
     xmlNodePtr cur;
-    virNWFilterRuleDef *ret;
+    g_autoptr(virNWFilterRuleDef) ret = NULL;
 
     ret = g_new0(virNWFilterRuleDef, 1);
 
@@ -2397,28 +2397,28 @@ virNWFilterRuleParse(xmlNodePtr node)
         virReportError(VIR_ERR_INTERNAL_ERROR,
                        "%s",
                        _("rule node requires action attribute"));
-        goto err_exit;
+        return NULL;
     }
 
     if ((ret->action = virNWFilterRuleActionTypeFromString(action)) < 0) {
         virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                        "%s",
                        _("unknown rule action attribute value"));
-        goto err_exit;
+        return NULL;
     }
 
     if (!direction) {
         virReportError(VIR_ERR_INTERNAL_ERROR,
                        "%s",
                        _("rule node requires direction attribute"));
-        goto err_exit;
+        return NULL;
     }
 
     if ((ret->tt = virNWFilterRuleDirectionTypeFromString(direction)) < 0) {
         virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                        "%s",
                        _("unknown rule direction attribute value"));
-        goto err_exit;
+        return NULL;
     }
 
     ret->priority = MAX_RULE_PRIORITY / 2;
@@ -2455,10 +2455,10 @@ virNWFilterRuleParse(xmlNodePtr node)
                     if (virNWFilterRuleDetailsParse(cur,
                                                     ret,
                                                     virAttr[i].att) < 0) {
-                        goto err_exit;
+                        return NULL;
                     }
                     if (virNWFilterRuleValidate(ret) < 0)
-                        goto err_exit;
+                        return NULL;
                     break;
                 }
                 if (!found) {
@@ -2476,11 +2476,7 @@ virNWFilterRuleParse(xmlNodePtr node)
 
     virNWFilterRuleDefFixup(ret);
 
-    return ret;
-
- err_exit:
-    g_clear_pointer(&ret, virNWFilterRuleDefFree);
-    return ret;
+    return g_steal_pointer(&ret);
 }
 
 
@@ -2561,7 +2557,7 @@ virNWFilterIsAllowedChain(const char *chainname)
 static virNWFilterDef *
 virNWFilterDefParseXML(xmlXPathContextPtr ctxt)
 {
-    virNWFilterDef *ret;
+    g_autoptr(virNWFilterDef) ret = NULL;
     xmlNodePtr curr = ctxt->node;
     g_autofree char *uuid = NULL;
     g_autofree char *chain = NULL;
@@ -2576,7 +2572,7 @@ virNWFilterDefParseXML(xmlXPathContextPtr ctxt)
     if (!ret->name) {
         virReportError(VIR_ERR_INTERNAL_ERROR,
                        "%s", _("filter has no name"));
-        goto cleanup;
+        return NULL;
     }
 
     chain_pri_s = virXPathString("string(./@priority)", ctxt);
@@ -2585,7 +2581,7 @@ virNWFilterDefParseXML(xmlXPathContextPtr ctxt)
             virReportError(VIR_ERR_INVALID_ARG,
                            _("Could not parse chain priority '%s'"),
                            chain_pri_s);
-            goto cleanup;
+            return NULL;
         }
         if (chain_priority < NWFILTER_MIN_FILTER_PRIORITY ||
             chain_priority > NWFILTER_MAX_FILTER_PRIORITY) {
@@ -2595,7 +2591,7 @@ virNWFilterDefParseXML(xmlXPathContextPtr ctxt)
                            chain_priority,
                            NWFILTER_MIN_FILTER_PRIORITY,
                            NWFILTER_MAX_FILTER_PRIORITY);
-            goto cleanup;
+            return NULL;
         }
     }
 
@@ -2603,7 +2599,7 @@ virNWFilterDefParseXML(xmlXPathContextPtr ctxt)
     if (chain) {
         name_prefix = virNWFilterIsAllowedChain(chain);
         if (name_prefix == NULL)
-            goto cleanup;
+            return NULL;
         ret->chainsuffix = g_steal_pointer(&chain);
 
         if (chain_pri_s) {
@@ -2626,13 +2622,13 @@ virNWFilterDefParseXML(xmlXPathContextPtr ctxt)
         if (virUUIDGenerate(ret->uuid) < 0) {
             virReportError(VIR_ERR_INTERNAL_ERROR,
                            "%s", _("unable to generate uuid"));
-            goto cleanup;
+            return NULL;
         }
     } else {
         if (virUUIDParse(uuid, ret->uuid) < 0) {
             virReportError(VIR_ERR_XML_ERROR,
                            "%s", _("malformed uuid element"));
-            goto cleanup;
+            return NULL;
         }
     }
 
@@ -2645,12 +2641,12 @@ virNWFilterDefParseXML(xmlXPathContextPtr ctxt)
             if (virXMLNodeNameEqual(curr, "rule")) {
                 if (!(entry->rule = virNWFilterRuleParse(curr))) {
                     virNWFilterEntryFree(entry);
-                    goto cleanup;
+                    return NULL;
                 }
             } else if (virXMLNodeNameEqual(curr, "filterref")) {
                 if (!(entry->include = virNWFilterIncludeParse(curr))) {
                     virNWFilterEntryFree(entry);
-                    goto cleanup;
+                    return NULL;
                 }
             }
 
@@ -2663,11 +2659,7 @@ virNWFilterDefParseXML(xmlXPathContextPtr ctxt)
         curr = curr->next;
     }
 
-    return ret;
-
- cleanup:
-    virNWFilterDefFree(ret);
-    return NULL;
+    return g_steal_pointer(&ret);
 }
 
 
diff --git a/src/conf/virnwfilterobj.c b/src/conf/virnwfilterobj.c
index 2e75e90cf1..2a2d877f49 100644
--- a/src/conf/virnwfilterobj.c
+++ b/src/conf/virnwfilterobj.c
@@ -564,37 +564,34 @@ virNWFilterObjListLoadConfig(virNWFilterObjList 
*nwfilters,
                              const char *configDir,
                              const char *name)
 {
-    virNWFilterDef *def = NULL;
+    g_autoptr(virNWFilterDef) def = NULL;
     virNWFilterObj *obj;
     g_autofree char *configFile = NULL;
 
     if (!(configFile = virFileBuildPath(configDir, name, ".xml")))
-        goto error;
+        return NULL;
 
     if (!(def = virNWFilterDefParse(NULL, configFile, 0)))
-        goto error;
+        return NULL;
 
     if (STRNEQ(name, def->name)) {
         virReportError(VIR_ERR_XML_ERROR,
                        _("network filter config filename '%s' "
                          "does not match name '%s'"),
                        configFile, def->name);
-        goto error;
+        return NULL;
     }
 
     /* We generated a UUID, make it permanent by saving the config to disk */
     if (!def->uuid_specified &&
         virNWFilterSaveConfig(configDir, def) < 0)
-        goto error;
+        return NULL;
 
-    if (!(obj = virNWFilterObjListAssignDef(nwfilters, def)))
-        goto error;
+    if (!(obj = virNWFilterObjListAssignDef(nwfilters,
+                                            g_steal_pointer(&def))))
+        return NULL;
 
     return obj;
-
- error:
-    virNWFilterDefFree(def);
-    return NULL;
 }
 
 
diff --git a/src/nwfilter/nwfilter_driver.c b/src/nwfilter/nwfilter_driver.c
index 8e45096eaa..be21aa12c2 100644
--- a/src/nwfilter/nwfilter_driver.c
+++ b/src/nwfilter/nwfilter_driver.c
@@ -531,7 +531,7 @@ nwfilterDefineXMLFlags(virConnectPtr conn,
                        unsigned int flags)
 {
     VIR_LOCK_GUARD lock = virLockGuardLock(&driverMutex);
-    virNWFilterDef *def;
+    g_autoptr(virNWFilterDef) def = NULL;
     virNWFilterObj *obj = NULL;
     virNWFilterDef *objdef;
     virNWFilterPtr nwfilter = NULL;
@@ -552,10 +552,10 @@ nwfilterDefineXMLFlags(virConnectPtr conn,
         goto cleanup;
 
     VIR_WITH_MUTEX_LOCK_GUARD(&driver->updateLock) {
-        if (!(obj = virNWFilterObjListAssignDef(driver->nwfilters, def)))
+        if (!(obj = virNWFilterObjListAssignDef(driver->nwfilters,
+                                                g_steal_pointer(&def))))
             goto cleanup;
     }
-    def = NULL;
     objdef = virNWFilterObjGetDef(obj);
 
     if (virNWFilterSaveConfig(driver->configDir, objdef) < 0) {
@@ -566,7 +566,6 @@ nwfilterDefineXMLFlags(virConnectPtr conn,
     nwfilter = virGetNWFilter(conn, objdef->name, objdef->uuid);
 
  cleanup:
-    virNWFilterDefFree(def);
     if (obj)
         virNWFilterObjUnlock(obj);
     return nwfilter;
diff --git a/tests/nwfilterxml2xmltest.c b/tests/nwfilterxml2xmltest.c
index ca037ad9a0..5c84c2fee9 100644
--- a/tests/nwfilterxml2xmltest.c
+++ b/tests/nwfilterxml2xmltest.c
@@ -16,31 +16,25 @@ testCompareXMLToXMLFiles(const char *inxml, const char 
*outxml,
                          bool expect_error)
 {
     g_autofree char *actual = NULL;
-    int ret = -1;
-    virNWFilterDef *dev = NULL;
+    g_autoptr(virNWFilterDef) def = NULL;
 
     virResetLastError();
 
-    if (!(dev = virNWFilterDefParse(NULL, inxml, 0))) {
+    if (!(def = virNWFilterDefParse(NULL, inxml, 0))) {
         if (expect_error) {
             virResetLastError();
-            goto done;
+            return 0;
         }
-        goto fail;
+        return -1;
     }
 
-    if (!(actual = virNWFilterDefFormat(dev)))
-        goto fail;
+    if (!(actual = virNWFilterDefFormat(def)))
+        return -1;
 
     if (virTestCompareToFile(actual, outxml) < 0)
-        goto fail;
+        return -1;
 
- done:
-    ret = 0;
-
- fail:
-    virNWFilterDefFree(dev);
-    return ret;
+    return 0;
 }
 
 typedef struct test_parms {
-- 
2.33.0

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