6750 	ssize_t sret;  in tracing_read_pipe()  local
6760 	sret = trace_seq_to_user(&iter->seq, ubuf, cnt);  in tracing_read_pipe()
6761 	if (sret != -EBUSY)  in tracing_read_pipe()
6767 		sret = iter->trace->read(iter, filp, ubuf, cnt, ppos);  in tracing_read_pipe()
6768 		if (sret)  in tracing_read_pipe()
6773 	sret = tracing_wait_pipe(filp);  in tracing_read_pipe()
6774 	if (sret <= 0)  in tracing_read_pipe()
6779 		sret = 0;  in tracing_read_pipe()
6821 	sret = trace_seq_to_user(&iter->seq, ubuf, cnt);  in tracing_read_pipe()
6829 	if (sret == -EBUSY)  in tracing_read_pipe()
6835 	return sret;  in tracing_read_pipe()