chord: avoid duplicate call of MSG_comm_test()

Commit caffead (exactly one year ago!) introduced a duplicate call to
MSG_comm_test(): MSG_comm_test() could return true on line 336, and
then be called again there. That caused a crash since the communication
was already finalized in the first MSG_comm_test() call.

diff --git a/examples/msg/chord/chord.c b/examples/msg/chord/chord.c
index 5061abd..ec12796 100644 (file)
--- a/examples/msg/chord/chord.c
+++ b/examples/msg/chord/chord.c
@@ -355,10 +355,7 @@ int node(int argc, char *argv[])
           // nothing to do: sleep for a while
           MSG_process_sleep(5);
         }
-      }
-
-      if (node.comm_receive && MSG_comm_test(node.comm_receive)) {
-
+      } else {
         // a transfer has occured
 
         msg_error_t status = MSG_comm_get_status(node.comm_receive);