greybus: operation: use the bundle struct device instead of the connector

We are removing struct device from the gb_connection structure in the
near future.  The gb_bundle structure's struct device should be used as
a replacement.

This patch moves the operation code to use to use the bundle pointer
instead of the connection pointer when printing out error messages.
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Reviewed-by: Alex Elder <elder@linaro.org>

drivers/staging/greybus/operation.c

@@ -227,7 +227,7 @@ static void gb_operation_request_handle(struct gb_operation *operation)
 	if (protocol->request_recv) {
 		status = protocol->request_recv(operation->type, operation);
 	} else {
-		dev_err(&operation->connection->dev,
+		dev_err(&operation->connection->bundle->dev,
 			"unexpected incoming request type 0x%02hhx\n",
 			operation->type);
 
@@ -236,7 +236,7 @@ static void gb_operation_request_handle(struct gb_operation *operation)
 
 	ret = gb_operation_response_send(operation, status);
 	if (ret) {
-		dev_err(&operation->connection->dev,
+		dev_err(&operation->connection->bundle->dev,
 			"failed to send response %d for type 0x%02hhx: %d\n",
 			status, operation->type, ret);
 			return;
@@ -743,7 +743,7 @@ static int gb_operation_response_send(struct gb_operation *operation,
 
 	/* Record the result */
 	if (!gb_operation_result_set(operation, errno)) {
-		dev_err(&connection->dev, "request result already set\n");
+		dev_err(&connection->bundle->dev, "request result already set\n");
 		return -EIO;	/* Shouldn't happen */
 	}
 
@@ -795,7 +795,7 @@ void greybus_message_sent(struct greybus_host_device *hd,
 	 */
 	if (message == operation->response) {
 		if (status) {
-			dev_err(&connection->dev,
+			dev_err(&connection->bundle->dev,
 				"error sending response type 0x%02hhx: %d\n",
 				operation->type, status);
 		}
@@ -827,7 +827,8 @@ static void gb_connection_recv_request(struct gb_connection *connection,
 	operation = gb_operation_create_incoming(connection, operation_id,
 						type, data, size);
 	if (!operation) {
-		dev_err(&connection->dev, "can't create incoming operation\n");
+		dev_err(&connection->bundle->dev,
+			"can't create incoming operation\n");
 		return;
 	}
 
@@ -864,15 +865,15 @@ static void gb_connection_recv_response(struct gb_connection *connection,
 
 	operation = gb_operation_find_outgoing(connection, operation_id);
 	if (!operation) {
-		dev_err(&connection->dev, "unexpected response 0x%04hx received\n",
-				operation_id);
+		dev_err(&connection->bundle->dev,
+			"unexpected response 0x%04hx received\n", operation_id);
 		return;
 	}
 
 	message = operation->response;
 	message_size = sizeof(*message->header) + message->payload_size;
 	if (!errno && size != message_size) {
-		dev_err(&connection->dev,
+		dev_err(&connection->bundle->dev,
 			"malformed response of type 0x%02hhx received (%zu != %zu)\n",
 			message->header->type, size, message_size);
 		errno = -EMSGSIZE;
@@ -901,17 +902,17 @@ void gb_connection_recv(struct gb_connection *connection,
 				void *data, size_t size)
 {
 	struct gb_operation_msg_hdr header;
+	struct device *dev = &connection->bundle->dev;
 	size_t msg_size;
 	u16 operation_id;
 
 	if (connection->state != GB_CONNECTION_STATE_ENABLED) {
-		dev_warn(&connection->dev, "dropping %zu received bytes\n",
-			size);
+		dev_warn(dev, "dropping %zu received bytes\n", size);
 		return;
 	}
 
 	if (size < sizeof(header)) {
-		dev_err(&connection->dev, "short message received\n");
+		dev_err(dev, "short message received\n");
 		return;
 	}
 
@@ -919,7 +920,7 @@ void gb_connection_recv(struct gb_connection *connection,
 	memcpy(&header, data, sizeof(header));
 	msg_size = le16_to_cpu(header.size);
 	if (size < msg_size) {
-		dev_err(&connection->dev,
+		dev_err(dev,
 			"incomplete message 0x%04hx of type 0x%02hhx received (%zu < %zu)\n",
 			le16_to_cpu(header.operation_id), header.type, size,
 			msg_size);
@@ -1029,7 +1030,7 @@ int gb_operation_sync_timeout(struct gb_connection *connection, int type,
 
 	ret = gb_operation_request_send_sync_timeout(operation, timeout);
 	if (ret) {
-		dev_err(&connection->dev,
+		dev_err(&connection->bundle->dev,
 			"synchronous operation of type 0x%02hhx failed: %d\n",
 			type, ret);
 	} else {