From 268d6523e9c76e0e316bad0d2472c987a431d91d Mon Sep 17 00:00:00 2001
From: Peter Barker <pbarker@barker.dropbear.id.au>
Date: Fri, 9 Jun 2017 15:38:07 +1000
Subject: [PATCH] DataFlash: check all backends for sensor health

---
 libraries/DataFlash/DataFlash.cpp | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/libraries/DataFlash/DataFlash.cpp b/libraries/DataFlash/DataFlash.cpp
index cdaaa06389695..3eb7e2a22db05 100644
--- a/libraries/DataFlash/DataFlash.cpp
+++ b/libraries/DataFlash/DataFlash.cpp
@@ -242,7 +242,12 @@ bool DataFlash_Class::logging_enabled() const
     if (_next_backend == 0) {
         return false;
     }
-    return backends[0]->logging_enabled();
+    for (uint8_t i=0; i<_next_backend; i++) {
+        if (backends[i]->logging_enabled()) {
+            return true;
+        }
+    }
+    return false;
 }
 bool DataFlash_Class::logging_failed() const
 {
@@ -250,7 +255,12 @@ bool DataFlash_Class::logging_failed() const
         // we should not have been called!
         return true;
     }
-    return backends[0]->logging_failed();
+    for (uint8_t i=0; i<_next_backend; i++) {
+        if (backends[i]->logging_failed()) {
+            return true;
+        }
+    }
+    return false;
 }
 
 void DataFlash_Class::Log_Write_MessageF(const char *fmt, ...)