380     has_err_msg = channel->ch_part[PART_ERR].ch_fd != INVALID_FD  in channel_still_useful()
381 		  || channel->ch_part[PART_ERR].ch_head.rq_next != NULL  in channel_still_useful()
382 		  || channel->ch_part[PART_ERR].ch_json_head.jq_next != NULL;  in channel_still_useful()
388 	    || ((channel->ch_part[PART_ERR].ch_callback.cb_name != NULL  in channel_still_useful()
389 		       || channel->ch_part[PART_ERR].ch_bufref.br_buf != NULL)  in channel_still_useful()
657 	channel_gui_register_one(channel, PART_ERR);  in channel_gui_register()
1177 	channel->ch_part[PART_ERR].ch_mode = opt->jo_err_mode;  in channel_set_options()
1186 	channel->ch_part[PART_ERR].ch_timeout = opt->jo_err_timeout;  in channel_set_options()
1196 	free_set_callback(&channel->ch_part[PART_ERR].ch_callback,  in channel_set_options()
1245     if ((opt->jo_set & JO_ERR_IO) && (opt->jo_io[PART_ERR] == JIO_BUFFER  in channel_set_options()
1246 	 || (opt->jo_io[PART_ERR] == JIO_OUT && (opt->jo_set & JO_OUT_IO)  in channel_set_options()
1253 	    channel->ch_part[PART_ERR].ch_mode = MODE_NL;  in channel_set_options()
1254 	if (opt->jo_io[PART_ERR] == JIO_OUT)  in channel_set_options()
1258 	    buf = buflist_findnr(opt->jo_io_buf[PART_ERR]);  in channel_set_options()
1260 		semsg(_(e_nobufnr), (long)opt->jo_io_buf[PART_ERR]);  in channel_set_options()
1267 		msg = opt->jo_message[PART_ERR];  in channel_set_options()
1268 	    buf = channel_find_buffer(opt->jo_io_name[PART_ERR], TRUE, msg);  in channel_set_options()
1273 		channel->ch_part[PART_ERR].ch_nomodifiable =  in channel_set_options()
1274 						!opt->jo_modifiable[PART_ERR];  in channel_set_options()
1275 	    if (!buf->b_p_ma && !channel->ch_part[PART_ERR].ch_nomodifiable)  in channel_set_options()
1283 		set_bufref(&channel->ch_part[PART_ERR].ch_bufref, buf);  in channel_set_options()
1292     channel->ch_part[PART_ERR].ch_io = opt->jo_io[PART_ERR];  in channel_set_options()
1398 		    && (part == PART_ERR || channel->CH_ERR_FD != *fd))  in ch_close_part()
1443 	channel_gui_unregister_one(channel, PART_ERR);  in channel_set_pipes()
1445 	ch_close_part(channel, PART_ERR);  in channel_set_pipes()
1447 	channel->ch_to_be_closed |= (1U << PART_ERR);  in channel_set_pipes()
1449 	channel_gui_register_one(channel, PART_ERR);  in channel_set_pipes()
3043     else if (req_part == PART_ERR)  in channel_status()
3047 	if (channel_has_readahead(channel, PART_ERR))  in channel_status()
3131 	channel_part_info(channel, dict, "err", PART_ERR);  in channel_info()
3153     ch_close_part(channel, PART_ERR);  in channel_close()
3288     channel_clear_one(channel, PART_ERR);  in channel_clear()
3517     if (part == PART_OUT || part == PART_ERR)  in ch_close_part_on_error()
3519 	ch_part_T other = part == PART_OUT ? PART_ERR : PART_OUT;  in ch_close_part_on_error()
4672 	if (part < PART_ERR)  in channel_parse_messages()
4707 	if (part < PART_ERR)  in channel_any_readahead()
4798 			    || channel_has_readahead(channel, PART_ERR);  in f_ch_canread()
4858 	    part = PART_ERR;  in f_ch_getbufnr()