AP_SLCANIface: prevent hardfault on arm #30059
Merged
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Setting
_port
to nullptr always carries a risk, as we may be interrupting a thread that was about to dereference it. Once we set_port
, we could avoid setting it to nullptr again, and instead use a flag. This allows us to prevent a hardfault without needing a mutex (and this can be a pretty hot path, so it's probably best to avoid it).