From eb3a08308d7822a0b244265d89c72a2492eca49a Mon Sep 17 00:00:00 2001
From: Dirk Ziegelmeier <dirk@ziegelmeier.net>
Date: Tue, 20 Sep 2016 09:14:32 +0200
Subject: [PATCH] Improve my last docs

---
 src/core/pbuf.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/core/pbuf.c b/src/core/pbuf.c
index 1400a752..db017fa4 100644
--- a/src/core/pbuf.c
+++ b/src/core/pbuf.c
@@ -63,7 +63,9 @@ void eth_rx_irq()
      dma_desc->rx_data,
      dma_desc->max_buffer_size);
 
-  netif->input(p, netif);
+  if(netif->input(p, netif) != ERR_OK) {
+    pbuf_free(p);
+  }
 }
   @endcode
  */