tsch: report MAC_TX_ERR if prepare() fails

Before this fix, uninitialized mac_tx_status was reported in this case.
2018-10-18 16:05:45 +09:00 · 2018-10-18 16:05:45 +09:00 · fc8ccac560
commit fc8ccac560
parent cc5d75f677
1 changed files with 2 additions and 0 deletions
--- a/os/net/mac/tsch/tsch-slot-operation.c
+++ b/os/net/mac/tsch/tsch-slot-operation.c
@ -643,6 +643,8 @@ PT_THREAD(tsch_tx_slot(struct pt *pt, struct rtimer *t))
            mac_tx_status = MAC_TX_ERR;
          }
        }
+      }else {
+        mac_tx_status = MAC_TX_ERR;
      }
    }