From d28831008f4b49ad65c88bd872eae33c618b3e7e Mon Sep 17 00:00:00 2001
From: Steve Evans <Steve@SCEvans.com>
Date: Mon, 20 Apr 2015 21:40:42 +0100
Subject: [PATCH] OP-1803 Return link quality of zero rather than throw an
 exception if no receiver if the receiver port is undefined

---
 flight/pios/common/pios_rcvr.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/flight/pios/common/pios_rcvr.c b/flight/pios/common/pios_rcvr.c
index 4ad7046ce..afae44b2a 100644
--- a/flight/pios/common/pios_rcvr.c
+++ b/flight/pios/common/pios_rcvr.c
@@ -129,7 +129,8 @@ uint8_t PIOS_RCVR_GetQuality(uint32_t rcvr_id)
 
     if (!PIOS_RCVR_validate(rcvr_dev)) {
         /* Undefined RCVR port for this board (see pios_board.c) */
-        PIOS_Assert(0);
+        /* As no receiver is available assume min */
+        return 0;
     }
 
     if (!rcvr_dev->driver->get_quality) {