From e94227cddd923852598003c27b0719e38236c479 Mon Sep 17 00:00:00 2001
From: geeksville <kevinh@geeksville.com>
Date: Thu, 23 Apr 2020 12:48:00 -0700
Subject: [PATCH] cope with missing interfaces in send

---
 src/rf95/Router.cpp | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/rf95/Router.cpp b/src/rf95/Router.cpp
index 6b949c1f..dff4b779 100644
--- a/src/rf95/Router.cpp
+++ b/src/rf95/Router.cpp
@@ -51,9 +51,13 @@ void Router::loop()
  */
 ErrorCode Router::send(MeshPacket *p)
 {
-    assert(iface);
-    DEBUG_MSG("Sending packet via interface fr=0x%x,to=0x%x,id=%d\n", p->from, p->to, p->id);
-    return iface->send(p);
+    if (iface) {
+        DEBUG_MSG("Sending packet via interface fr=0x%x,to=0x%x,id=%d\n", p->from, p->to, p->id);
+        return iface->send(p);
+    } else {
+        DEBUG_MSG("Dropping packet - no interfaces - fr=0x%x,to=0x%x,id=%d\n", p->from, p->to, p->id);
+        return ERRNO_NO_INTERFACES;
+    }
 }
 
 #include "GPS.h"