diff --git a/sound/firewire/amdtp-stream-trace.h b/sound/firewire/amdtp-stream-trace.h
index ab70885..5fe0920f 100644
--- a/sound/firewire/amdtp-stream-trace.h
+++ b/sound/firewire/amdtp-stream-trace.h
@@ -35,11 +35,11 @@ TRACE_EVENT(amdtp_packet,
 		__entry->cycle = cycles % CYCLES_PER_SECOND;
 		__entry->channel = s->context->channel;
 		if (s->direction == AMDTP_IN_STREAM) {
-			__entry->src = fw_parent_device(s->unit)->node_id;
-			__entry->dest = fw_parent_device(s->unit)->card->node_id;
-		} else {
 			__entry->src = fw_parent_device(s->unit)->card->node_id;
 			__entry->dest = fw_parent_device(s->unit)->node_id;
+		} else {
+			__entry->src = fw_parent_device(s->unit)->node_id;
+			__entry->dest = fw_parent_device(s->unit)->card->node_id;
 		}
 		if (cip_header) {
 			memcpy(__get_dynamic_array(cip_header), cip_header,