1 files changed, 8 insertions, 11 deletions

diff --git a/drivers/firewire/core-transaction.c b/drivers/firewire/core-transaction.c
index da628c7..842739d 100644
--- a/drivers/firewire/core-transaction.c
+++ b/drivers/firewire/core-transaction.c
@@ -218,12 +218,15 @@ static void fw_fill_request(struct fw_packet *packet, int tcode, int tlabel,
 		packet->header_length = 16;
 		packet->payload_length = 0;
 		break;
+
+	default:
+		WARN(1, KERN_ERR "wrong tcode %d", tcode);
 	}
  common:
 	packet->speed = speed;
 	packet->generation = generation;
 	packet->ack = 0;
-	packet->payload_bus = 0;
+	packet->payload_mapped = false;
 }
 
 /**
@@ -595,11 +598,10 @@ void fw_fill_response(struct fw_packet *response, u32 *request_header,
 		break;
 
 	default:
-		BUG();
-		return;
+		WARN(1, KERN_ERR "wrong tcode %d", tcode);
 	}
 
-	response->payload_bus = 0;
+	response->payload_mapped = false;
 }
 EXPORT_SYMBOL(fw_fill_response);
 
@@ -810,8 +812,7 @@ static void handle_topology_map(struct fw_card *card, struct fw_request *request
 		int speed, unsigned long long offset,
 		void *payload, size_t length, void *callback_data)
 {
-	int i, start, end;
-	__be32 *map;
+	int start;
 
 	if (!TCODE_IS_READ_REQUEST(tcode)) {
 		fw_send_response(card, request, RCODE_TYPE_ERROR);
@@ -824,11 +825,7 @@ static void handle_topology_map(struct fw_card *card, struct fw_request *request
 	}
 
 	start = (offset - topology_map_region.start) / 4;
-	end = start + length / 4;
-	map = payload;
-
-	for (i = 0; i < length / 4; i++)
-		map[i] = cpu_to_be32(card->topology_map[start + i]);
+	memcpy(payload, &card->topology_map[start], length);
 
 	fw_send_response(card, request, RCODE_COMPLETE);
 }