Index: uspace/lib/usbhost/include/usb/host/usb_transfer_batch.h
===================================================================
--- uspace/lib/usbhost/include/usb/host/usb_transfer_batch.h	(revision f167f55b49e042054fdc579f06045cd8838ba129)
+++ uspace/lib/usbhost/include/usb/host/usb_transfer_batch.h	(revision e65cd3c4303eaebb8184e4d09bc6e6ed4ca3b67e)
@@ -116,8 +116,9 @@
  */
 static inline void usb_transfer_batch_finish(
-    const usb_transfer_batch_t *instance, const void* data, size_t size)
+    const usb_transfer_batch_t *instance, const void* data)
 {
 	assert(instance);
-	usb_transfer_batch_finish_error(instance, data, size, instance->error);
+	usb_transfer_batch_finish_error(
+	    instance, data, instance->transfered_size, instance->error);
 }
 /*----------------------------------------------------------------------------*/