Fix bug about fail-safe timer re-arm when using non-concurrent mode. (#42820) (#72385)

* Fix bug about fail-safe timer rearm when using non-concurrent mode.

* Restyled by clang-format

* Update src/controller/AutoCommissioner.h



* fix

* Restyled by clang-format

* Update src/controller/CHIPDeviceController.cpp



---------



(cherry picked from commit 7980901)

Co-authored-by: Olivier LORENTE [ST] <34505085+OlivierGre@users.noreply.github.com>
Co-authored-by: Restyled.io <commits@restyled.io>
Co-authored-by: Boris Zbarsky <bzbarsky@apple.com>

Author: 4 people

src/controller/CHIPDeviceController.cpp

@@ -2170,6 +2170,16 @@ void DeviceCommissioner::OnDeviceConnectionRetryFn(void * context, const ScopedN
                 self->GetCommissioningStage() == CommissioningStage::kFindOperationalForCommissioningComplete);
     VerifyOrDie(self->mDeviceBeingCommissioned->GetDeviceId() == peerId.GetNodeId());
 
+    bool supportsConcurrent =
+        self->mCommissioningDelegate->GetCommissioningParameters().GetSupportsConcurrentConnection().ValueOr(true);
+    if (!supportsConcurrent)
+    {
+        // Concurrent mode not supported.
+        // We are in operational phase so the commissioning channel is not
+        // available anymore and it is not possible to re-arm the fail-safe timer.
+        return;
+    }
+
     // We need to do the fail-safe arming over the PASE session.
     auto * commissioneeDevice = self->FindCommissioneeDevice(peerId.GetNodeId());
     if (!commissioneeDevice)