From a833d838b94247ecfe94eeef68ae26ce7e12fbb1 Mon Sep 17 00:00:00 2001
From: Kaspar Schleiser <kaspar@schleiser.de>
Date: Sun, 21 Feb 2016 23:52:29 +0100
Subject: [PATCH] drivers: ethos: don't error if recv buffer is larger than
 needed

---
 drivers/ethos/ethos.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/ethos/ethos.c b/drivers/ethos/ethos.c
index 835cfaa448..f625ed5126 100644
--- a/drivers/ethos/ethos.c
+++ b/drivers/ethos/ethos.c
@@ -297,11 +297,12 @@ static int _recv(netdev2_t *netdev, char* buf, int len, void* info)
     ethos_t * dev = (ethos_t *) netdev;
 
     if (buf) {
-        if (len != dev->last_framesize) {
-            DEBUG("ethos _recv(): unmatched receive buffer size.");
+        if (len < dev->last_framesize) {
+            DEBUG("ethos _recv(): receive buffer too small.");
             return -1;
         }
 
+        len = dev->last_framesize;
         dev->last_framesize = 0;
 
         if ((tsrb_get(&dev->inbuf, buf, len) != len)) {