From 8e35973ff94859ed25a0906455ce2a46d4145937 Mon Sep 17 00:00:00 2001
From: Matthijs Kooijman <matthijs@stdin.nl>
Date: Tue, 18 Feb 2014 21:02:26 +0100
Subject: [PATCH] Remove check that is always false

len is an unsigned variable, so it will never be less than 0.

This helps towards #1792.
---
 hardware/arduino/sam/cores/arduino/USB/USBCore.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hardware/arduino/sam/cores/arduino/USB/USBCore.cpp b/hardware/arduino/sam/cores/arduino/USB/USBCore.cpp
index 7876762b7..b086e5080 100644
--- a/hardware/arduino/sam/cores/arduino/USB/USBCore.cpp
+++ b/hardware/arduino/sam/cores/arduino/USB/USBCore.cpp
@@ -139,7 +139,7 @@ uint32_t USBD_Available(uint32_t ep)
 //	Return number of bytes read
 uint32_t USBD_Recv(uint32_t ep, void* d, uint32_t len)
 {
-	if (!_usbConfiguration || len < 0)
+	if (!_usbConfiguration)
 		return -1;
 
 	LockEP lock(ep);