unsigned char *tx_buffer;
};
-static int
-qca_tty_receive(struct serdev_device *serdev, const unsigned char *data,
- size_t count)
+static ssize_t
+qca_tty_receive(struct serdev_device *serdev, const u8 *data, size_t count)
{
struct qcauart *qca = serdev_device_get_drvdata(serdev);
struct net_device *netdev = qca->net_dev;