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AP_AHRS: fill in error string when invalid backend specified

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Peter Barker 2023-09-24 13:25:06 +10:00 committed by Peter Barker
parent 34bceb8eec
commit 429dbefade
1 changed files with 6 additions and 1 deletions
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7
libraries/AP_ExternalAHRS/AP_ExternalAHRS.cpp
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@ -192,7 +192,12 @@ bool AP_ExternalAHRS::get_speed_down(float &speedD)
bool AP_ExternalAHRS::pre_arm_check(char *failure_msg, uint8_t failure_msg_len) const
{
return backend && backend->pre_arm_check(failure_msg, failure_msg_len);
if (backend == nullptr) {
hal.util->snprintf(failure_msg, failure_msg_len, "ExternalAHRS: Invalid backend");
return false;
}
return backend->pre_arm_check(failure_msg, failure_msg_len);
}
/*