06.02.2019 22:16, Sowjanya Komatineni пишет:
> + if (i2c_dev->msg_read && i2c_dev->msg_err == I2C_ERR_NONE) {
> + dma_sync_single_for_cpu(i2c_dev->dev,
> + i2c_dev->dma_phys,
> + xfer_size,
> + DMA_FROM_DEVICE);
> + memcpy(i2c_dev->msg_buf, i2c_dev->dma_buf,
> + msg->len);
> + }
> +
> + if (i2c_dev->msg_err != I2C_ERR_NONE) {
> + dmaengine_synchronize(i2c_dev->msg_read ?
> + i2c_dev->rx_dma_chan :
> + i2c_dev->tx_dma_chan);
> + }
Minor nit: parentheses are not really around the dmaengine_synchronize()
