Merge "Fix dereference null pointer warning."

        data.writeInt32(handle);

        data.writeStrongBinder(IInterface::asBinder(client));

        ALOGV("attach() config %p withAudio %d region %d type %d",

              config == NULL ? 0 : config, withAudio, config->region, config->band.type);

              config == NULL ? 0 : config, withAudio,

              config == NULL ? 0 : config->region,

              config == NULL ? 0 : config->band.type);

        if (config == NULL) {

            data.writeInt32(0);

        } else {