auth: Don't crash if passwd-file can't be opened

diff --git a/src/auth/db-passwd-file.c b/src/auth/db-passwd-file.c
index 8ebfaca75e4cf86586473bdf689658317bb5cb44..df41c12d9deac14491524ce47b0c4039c27f1177 100644 (file)
--- a/src/auth/db-passwd-file.c
+++ b/src/auth/db-passwd-file.c
@@ -263,7 +263,7 @@ static int passwd_file_sync(struct auth_request *request,
        const char *error;
 
        if (pw->last_sync_time == ioloop_time)
-               return 0;
+               return hash_table_is_created(pw->users) ? 0 : -1;
        pw->last_sync_time = ioloop_time;
 
        if (stat(pw->path, &st) < 0) {