linux-imx

{

    unsigned int row_shift = get_count_order(cols);

    size_t max_keys = rows << row_shift;

    int i;

    int error;

​

    if (WARN_ON(!input_dev->dev.parent))

        return -EINVAL;

​

    if (!keymap) {

                      GFP_KERNEL);

        if (!keymap) {

            dev_err(input_dev->dev.parent,

                "Unable to allocate memory for keymap");

            return -ENOMEM;

        }

    }

​

    input_dev->keycode = keymap;

    input_dev->keycodesize = sizeof(*keymap);