199 	if (c->ctl_chan != -1) {  in mux_master_session_cleanup_cb()
200 		if ((cc = channel_by_id(c->ctl_chan)) == NULL)  in mux_master_session_cleanup_cb()
202 			    __func__, c->self, c->ctl_chan);  in mux_master_session_cleanup_cb()
203 		c->ctl_chan = -1;  in mux_master_session_cleanup_cb()
225 		sc->ctl_chan = -1;  in mux_master_control_cleanup_cb()
456 	nc->ctl_chan = c->self;		/* link session -> control channel */  in process_mux_new_session()
467 	    __func__, nc->self, nc->ctl_chan);  in process_mux_new_session()
904 	nc->ctl_chan = c->self;		/* link session -> control channel */  in process_mux_stdio_fwd()
908 	    __func__, nc->self, nc->ctl_chan);  in process_mux_stdio_fwd()
1044 	if ((mux_chan = channel_by_id(c->ctl_chan)) == NULL)  in mux_exit_message()
1046 		    __func__, c->self, c->ctl_chan);  in mux_exit_message()
1066 	if ((mux_chan = channel_by_id(c->ctl_chan)) == NULL)  in mux_tty_alloc_failed()
1068 		    __func__, c->self, c->ctl_chan);  in mux_tty_alloc_failed()
1192 	if ((cc = channel_by_id(c->ctl_chan)) == NULL)  in mux_session_confirm()
1194 		    id, c->ctl_chan);  in mux_session_confirm()