From 43f1c74c64aae1e1029483a73871e7b234fbde69 Mon Sep 17 00:00:00 2001
From: J Blackman <blckmn@users.noreply.github.com>
Date: Sat, 11 Mar 2023 06:50:45 +1100
Subject: [PATCH] FIX: CRSF no active serial port and telem causing hardfault
 (#12496)

* FIX: no active serial port and telem causing hardfault
---
 src/main/rx/crsf.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/main/rx/crsf.c b/src/main/rx/crsf.c
index 66b4525e7a..f371f15033 100644
--- a/src/main/rx/crsf.c
+++ b/src/main/rx/crsf.c
@@ -608,7 +608,9 @@ void crsfRxSendTelemetryData(void)
 {
     // if there is telemetry data to write
     if (telemetryBufLen > 0) {
-        serialWriteBuf(serialPort, telemetryBuf, telemetryBufLen);
+        if (serialPort != NULL) {
+            serialWriteBuf(serialPort, telemetryBuf, telemetryBufLen);
+        }
         telemetryBufLen = 0; // reset telemetry buffer
     }
 }