fix safuzz test crash

Signed-off-by: liqiao49 <liqiao49@huawei.com>

interfaces/ipc/include/distributed_input_source_stub.h

@@ -19,6 +19,7 @@
 #include "i_distributed_source_input.h"
 
 #include <iostream>
+#include <atomic>
 
 #include "iremote_stub.h"
 
@@ -57,6 +58,8 @@ private:
     int32_t HandleRegisterSimulationEventListener(MessageParcel &data, MessageParcel &reply);
     int32_t HandleUnregisterSimulationEventListener(MessageParcel &data, MessageParcel &reply);
     DISALLOW_COPY_AND_MOVE(DistributedInputSourceStub);
+private:
+    std::atomic<bool> sourceInitFlag_ {false};
 };
 } // namespace DistributedInput
 } // namespace DistributedHardware

interfaces/ipc/src/distributed_input_source_stub.cpp

@@ -31,11 +31,16 @@ DistributedInputSourceStub::~DistributedInputSourceStub()
 
 int32_t DistributedInputSourceStub::HandleInitDistributedHardware(MessageParcel &reply)
 {
+    if (sourceInitFlag_.load()) {
+        DHLOGE("DistributedInputSourceStub already init.");
+        return DH_SUCCESS;
+    }
     int32_t ret = Init();
     if (!reply.WriteInt32(ret)) {
         DHLOGE("DistributedInputSourceStub Init write ret failed");
         return ERR_DH_INPUT_IPC_WRITE_TOKEN_VALID_FAIL;
     }
+    sourceInitFlag_.store(true);
     return DH_SUCCESS;
 }