[sg toup] lwm2m: bugfix: don't mess up the count of updated objects.

Backported from 1c5e61f.

Signed-off-by: Marc Lasch <[email protected]>
(cherry picked from commit 2525ca6)

Author: AlexeyNezhdanovGardena

subsys/net/lib/lwm2m/lwm2m_observation.c

@@ -352,10 +352,10 @@ int lwm2m_notify_observer_path(struct lwm2m_obj_path *path)
 		SYS_SLIST_FOR_EACH_CONTAINER(&sock_ctx[i]->observer, obs, node) {
 			if (lwm2m_notify_observer_list(&obs->path_list, path)) {
 				/* update the event time for this observer */
-				ret = engine_observe_attribute_list_get(&obs->path_list, &nattrs,
-									sock_ctx[i]->srv_obj_inst);
-				if (ret < 0) {
-					return ret;
+				int rc = engine_observe_attribute_list_get(
+					&obs->path_list, &nattrs, sock_ctx[i]->srv_obj_inst);
+				if (rc < 0) {
+					return rc;
 				}
 
 				if (nattrs.pmin) {