subexpr          2394 kernel/trace/trace_events_hist.c 		char *subexpr;
subexpr          2397 kernel/trace/trace_events_hist.c 		subexpr = expr_str(field->operands[0], ++level);
subexpr          2398 kernel/trace/trace_events_hist.c 		if (!subexpr) {
subexpr          2402 kernel/trace/trace_events_hist.c 		strcat(expr, subexpr);
subexpr          2405 kernel/trace/trace_events_hist.c 		kfree(subexpr);