From 75626fb07117e35ec9cd326fb51aa664f524e96c Mon Sep 17 00:00:00 2001
From: SaeHie Park <saehie.park@samsung.com>
Date: Wed, 29 Jul 2015 14:51:30 +0900
Subject: [PATCH] STM32: Fix eth mem leak in recvframe

---
 arch/arm/src/stm32/stm32_eth.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm/src/stm32/stm32_eth.c b/arch/arm/src/stm32/stm32_eth.c
index 4b65f7129e..4d77154521 100644
--- a/arch/arm/src/stm32/stm32_eth.c
+++ b/arch/arm/src/stm32/stm32_eth.c
@@ -1670,6 +1670,16 @@ static void stm32_receive(FAR struct stm32_ethmac_s *priv)
       if (dev->d_len > CONFIG_NET_ETH_MTU)
         {
           nlldbg("DROPPED: Too big: %d\n", dev->d_len);
+
+          /* free dropped packet buffer */
+          if (dev->d_buf)
+            {
+              nllvdbg("! dev->d_buf not NULL, %p / %d\n",
+                      dev->d_buf, dev->d_len );
+              stm32_freebuffer(priv, dev->d_buf);
+              dev->d_buf = NULL;
+              dev->d_len = 0;
+            }
           continue;
         }