AP_NavEKF2: add prearm failure message for null core pointer

5 years ago · 6e73feca5c
1 changed files with 1 additions and 1 deletions
--- a/libraries/AP_NavEKF2/AP_NavEKF2.cpp
+++ b/libraries/AP_NavEKF2/AP_NavEKF2.cpp
@ -1455,7 +1455,7 @@ uint32_t NavEKF2::getLastVelNorthEastReset(Vector2f &vel) const
 const char *NavEKF2::prearm_failure_reason(void) const
 {
    if (!core) {
-        return nullptr;
+        return "no EKF2 cores";
    }
    for (uint8_t i = 0; i < num_cores; i++) {
        const char * failure = core[i].prearm_failure_reason();