From eca0b8b411fb6e86e315338c7b92e1cdb4100c3a Mon Sep 17 00:00:00 2001
From: sdhsdh <sdhsdh>
Date: Thu, 17 Sep 2009 17:58:02 +0000
Subject: [PATCH]  - serial lockup fix

---
 tos/lib/serial/SerialDispatcherP.nc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tos/lib/serial/SerialDispatcherP.nc b/tos/lib/serial/SerialDispatcherP.nc
index e2afe5af..fd2946b1 100644
--- a/tos/lib/serial/SerialDispatcherP.nc
+++ b/tos/lib/serial/SerialDispatcherP.nc
@@ -294,6 +294,9 @@ implementation {
         receiveTaskSize = recvIndex;
         receiveBufferSwap();
         receiveState.state = RECV_STATE_IDLE;
+      } else {
+        // we can't deliver the packet, better free the current buffer.
+        unlockBuffer(receiveState.which);
       }
     }
     if (postsignalreceive){
-- 
2.39.2