lib-auth-client: auth-master - Fix potential segfault in auth_master_wait()

Found by Coverity (#41970).

diff --git a/src/lib-auth-client/auth-master.c b/src/lib-auth-client/auth-master.c
index 56bedef9f91f7cb912fdf9fd2184788c37abf5b5..39a571e60c69e44e0e827e5ae9e1bac5504cf8f1 100644 (file)
--- a/src/lib-auth-client/auth-master.c
+++ b/src/lib-auth-client/auth-master.c
@@ -632,8 +632,8 @@ void auth_master_wait(struct auth_master_connection *conn)
        if (conn->conn.input != NULL &&
            i_stream_get_data_size(conn->conn.input) > 0)
                i_stream_set_input_pending(conn->conn.input, TRUE);
-       o_stream_set_flush_pending(conn->conn.output, TRUE);
        if (conn->conn.output != NULL) {
+               o_stream_set_flush_pending(conn->conn.output, TRUE);
                was_corked = o_stream_is_corked(conn->conn.output);
                o_stream_uncork(conn->conn.output);
        }