rgw:lc: RGWPutLC return ERR_MALFORMED_XML when missing <Rule> tag in lifecycle.xml

Fixes: http://tracker.ceph.com/issues/21377
Signed-off-by: Shasha Lu <lu.shasha@eisoo.com>
(cherry picked from commit a08d4258228ce23c4e5fec0f556ac23cbf0ff34a)

diff --git a/src/rgw/rgw_lc_s3.cc b/src/rgw/rgw_lc_s3.cc
index b03c4c32b9efa5d9b19397de49066a023a156750..c5058c760d86343f14c54904365294588211bf2d 100644 (file)
--- a/src/rgw/rgw_lc_s3.cc
+++ b/src/rgw/rgw_lc_s3.cc
@@ -60,6 +60,8 @@ bool LCMPExpiration_S3::xml_end(const char *el) {
 bool RGWLifecycleConfiguration_S3::xml_end(const char *el) {
   XMLObjIter iter = find("Rule");
   LCRule_S3 *rule = static_cast<LCRule_S3 *>(iter.get_next());
+  if (!rule)
+    return false;
   while (rule) {
     add_rule(rule);
     rule = static_cast<LCRule_S3 *>(iter.get_next());