From fa524fabd7a0315174682acb6d06d6d98d51d85a Mon Sep 17 00:00:00 2001
From: adamdunkels <adamdunkels>
Date: Tue, 25 Jan 2011 14:24:38 +0000
Subject: [PATCH] Bugfix: q->buf was not tested for NULL, as it should be. Fix
 by Simon Duquennoy.

---
 core/net/mac/csma.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/core/net/mac/csma.c b/core/net/mac/csma.c
index 2a14b905a..6a82e3717 100644
--- a/core/net/mac/csma.c
+++ b/core/net/mac/csma.c
@@ -28,7 +28,7 @@
  *
  * This file is part of the Contiki operating system.
  *
- * $Id: csma.c,v 1.26 2011/01/18 16:03:57 adamdunkels Exp $
+ * $Id: csma.c,v 1.27 2011/01/25 14:24:38 adamdunkels Exp $
  */
 
 /**
@@ -277,7 +277,7 @@ send_packet(mac_callback_t sent, void *ptr)
     q = memb_alloc(&packet_memb);
     if(q != NULL) {
       q->buf = queuebuf_new_from_packetbuf();
-      if(q != NULL) {
+      if(q->buf != NULL) {
         if(packetbuf_attr(PACKETBUF_ATTR_MAX_MAC_TRANSMISSIONS) == 0) {
           /* Use default configuration for max transmissions */
           q->max_transmissions = CSMA_MAX_MAC_TRANSMISSIONS;