common/config_obs_mgr: use the erase() return value

Signed-off-by: Max Kellermann <max.kellermann@ionos.com>

diff --git a/src/common/config_obs_mgr.h b/src/common/config_obs_mgr.h
index 759930df92d9bc37954ed6865a255eb864c5513f..5336538e4387440436919659d47c435dca5e5871 100644 (file)
--- a/src/common/config_obs_mgr.h
+++ b/src/common/config_obs_mgr.h
@@ -75,7 +75,7 @@ typename ObserverMgr<ConfigObs>::config_obs_wptr ObserverMgr<ConfigObs>::remove_
   for (auto o = observers.begin(); o != observers.end(); ) {
     if (*o->second == observer) {
       ptr = std::move(o->second);
-      observers.erase(o++);
+      o = observers.erase(o);
       found_obs = true;
     } else {
       ++o;