Index: padlock.c
===================================================================
--- padlock.c	(wersja 180626)
+++ padlock.c	(kopia robocza)
@@ -271,7 +271,7 @@
 	padlock_hash_free(ses);
 	bzero(ses, sizeof(*ses));
 	ses->ses_used = 0;
-	TAILQ_INSERT_HEAD(&sc->sc_sessions, ses, ses_next);
+	TAILQ_INSERT_TAIL(&sc->sc_sessions, ses, ses_next);
 	rw_wunlock(&sc->sc_sessions_lock);
 	return (0);
 }
@@ -322,12 +322,12 @@
 		goto out;
 	}
 
-	rw_rlock(&sc->sc_sessions_lock);
+	rw_wlock(&sc->sc_sessions_lock);
 	TAILQ_FOREACH(ses, &sc->sc_sessions, ses_next) {
 		if (ses->ses_id == (crp->crp_sid & 0xffffffff))
 			break;
 	}
-	rw_runlock(&sc->sc_sessions_lock);
+	rw_wunlock(&sc->sc_sessions_lock);
 	if (ses == NULL) {
 		error = EINVAL;
 		goto out;