|  | @@ -77,6 +77,7 @@ static const grpc_socket_mutator_vtable mutator_vtable = {mutate_fd,
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				|  |  |  
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				|  |  |  int main(int argc, char **argv) {
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				|  |  |    int sock;
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				|  |  | +  grpc_error *err;
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				|  |  |    grpc_test_init(argc, argv);
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				|  |  |  
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				|  |  |    sock = socket(PF_INET, SOCK_STREAM, 0);
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				|  | @@ -118,8 +119,9 @@ int main(int argc, char **argv) {
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				|  |  |        grpc_set_socket_with_mutator(sock, (grpc_socket_mutator *)&mutator)));
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				|  |  |  
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				|  |  |    mutator.option_value = -1;
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				|  |  | -  GPR_ASSERT(GRPC_ERROR_NONE != grpc_set_socket_with_mutator(
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				|  |  | -                                    sock, (grpc_socket_mutator *)&mutator));
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				|  |  | +  err = grpc_set_socket_with_mutator(sock, (grpc_socket_mutator *)&mutator);
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				|  |  | +  GPR_ASSERT(err != GRPC_ERROR_NONE);
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				|  |  | +  GRPC_ERROR_UNREF(err);
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				|  |  |  
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				|  |  |    close(sock);
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				|  |  |  
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